Firm Profile > Mason Hayes & Curran LLP > Dublin, Ireland

Mason Hayes & Curran LLP
D04 TR29

Banking and finance Tier 1

The 'innovative and experienced' team at Mason Hayes & Curran LLP has expertise across the full spectrum of financial transactions, including acquisition, real estate and project finance, large loan portfolio sales, and refinancings. Clients include a range of domestic and international banks, borrowers, and private equity and institutional investors. Practice head William Carmody is noted for his experience in the financing of renewable energy and infrastructure projects, while Micheál Grace and the 'superb' Neil Campbell have been highly active in loan portfolio transactions (on the acquisition and disposal sides, respectively). Jenny Ahern specialises in advising international clients on corporate acquisition finance and Karol Fox has experience in multi-jurisdictional transactions.

Practice head(s):

William Carmody


The service provided has been excellent and consistent. Mason Hayes & Curran have a wide range of expertise which ensures we are only dealing with the one firm on each transaction. Their industry knowledge and relationship with other partners in the industry provides us with great comfort.

Neil Campbell and Karol Fox’s ability to lead a transaction and work to tight deadlines stands out. Communication, consistency and professionalism all stand out when dealing with both partners.

The team are excellent to work with, innovative and experienced, well connected and responsive.

Neil Campbell is dedicated, efficient, knowledgeable about the market and committed to client needs. His ability to develop and bring along junior talent on his team is noted.

Irene Nic Chárthaigh (associate) is a very promising and bright lawyer.

Great strength in depth, responsive, commercially astute and an understanding of what is required to get a transaction done in a timely fashion.

Neil Campbell is a superb lawyer. He understands his clients’ business, he communicates clearly and knows what is required to ensure a transaction runs smoothly.

The team is young, dynamic and very client focused.

Personable approach, get the job done and find a solution to issues.

Personable, diligent

The team holds a range of experience across a number of fields which makes advice reliable and quick to obtain.

Key clients

Allied Irish Banks

Bank of Ireland

Ulster Bank Ireland DAC/Royal Bank of Scotland

Barclays Bank Ireland PLC/Barclays Bank PLC

Permanent tsb

Irish Residential Properties REIT Plc

Greencoat Renewables PLC

Toyota Financial Services (Ireland) DAC

Norddeutsche Landesbank Girozentrale



Commercial, corporate and M&A Tier 1

Noted for its 'knowledge and responsiveness', Mason Hayes & Curran LLP has acted on some of the most significant M&A deals in the Irish market, and has been increasingly active in advising on group reorganisations (particularly involving multiple jurisdictions). The team has particular expertise in the technology sector, with other areas of focus including the energy, travel and leisure, built environment, healthcare and life sciences, and insurance sectors. It also has an 'excellent' corporate charities practice. Team head David O’Donnell counts major corporates and Irish financial institutions among his clients, as well as a number of fast-growth companies; the 'exceptional' Justin McKenna has a strong reputation for significant public company M&A; Liam Brazil specialises in matters involving the renewable energy sector, and Martin Kelleher in pharmaceuticals and life sciences; Claire Lord heads the corporate governance and compliance practice; Robert Dickson is active in cross-border transactions; and senior associate Conall Geraghty has experience advising on transactions in the renewable energy sector.

Practice head(s):

David O’Donnell; Philip Nolan; Claire Lord


Knowledge and responsiveness

Robert Dickson and associate John McDonagh stand out for their understanding of the relevant issues and ability to be commercial in most situations.

The team is extremely client focused.

Robert Dickson has an excellent client focus. Rather than leveraging us to more junior colleagues he absolutely led delivery of his firm’s services.

There was not a single individual I came across who was not friendly and approachable.

Mason Hayes & Curran are exceptionally professional, responsive and knowledgeable.

Justin McKenna is an exceptional partner, always at the end of a phone and always very thorough in his detailed advice. A sensible, logical and rational approach is always at hand when dealing with Justin.

They work as a team with you to find solutions.

The charities team is excellent.

Niamh Callaghan ensures key deliverables and milestones are met. She brings both legal expertise and a practical approach to the issues raised.

Clear expertise in the M&A world and the issues that constantly arise on both buyer and seller side.

Responsive and personable. Calm under pressure with a good understanding of the issues that matter to clients.

Excellent communication, deep expertise in specific areas, good response time and good negotiators. My go-to legal counsel firm.

Martin Kelleher is a trusted adviser to our firm. He has deep commercial expertise in all areas, and is an excellent partner to conduct a negotiation with and a great communicator.

Knowledgeable, commercially minded, efficient law firm who were a pleasure to work with.

Frank O’Flynn is commercially minded and pragmatic but also fun to work with.’

Key clients

Boparan Limited

Paulus Holdings Limited t/a LetsGetChecked

NTR plc

Global Shares PLC

Blackhawk Network Holdings Inc

National Maternity Hospital, Holles St.

Allied Irish Banks plc

Greencoat Renewables PLC

Element Power Ireland Limited

Construction Tier 1

Mason Hayes & Curran LLP has experience advising on major construction projects across the energy, technology, pharmaceutical, residential and education sectors. The sizeable team is also active in litigation, including representing clients in Commercial Court proceedings and handling construction insolvency and insurance disputes. The firm's blue-chip client base includes contractors, investors and developers, banks and financial institutions, energy companies and state bodies. Practice head Rory Kirrane has particular expertise in energy and data centre projects and international matters; Eoin Cassidy specialises in energy projects; Susan Bryson focuses on contentious matters, particularly advising education sector clients; and Shane Dolan has experience in high-profile development projects.

Practice head(s):

Rory Kirrane


‘An extremely strong team led by Rory Kirrane. Each member of the team, from Rory down, is very responsive and provides tremendous support for our business.’

‘Rory Kirrane responds promptly to queries and provides clear and comprehensive advice on the spot. He’s great with clients and has a brilliant manner. This is clearly something that he’s fed down to his team.’

‘Senior associate Hannah Devoy is an excellent lawyer. Her drafting is to a consistently high standard and she provides very clear and readily intelligible advice.’

‘The team appears to have a solid ability to turn around matters within an agreed timeframe, even if that timeframe is tight. Their ability to stay within budget and achieve an outcome within set parameters was appreciated.’

‘Hannah Devoy worked on the majority of our files and there was little in the way of a need for hand holding. Queries raised by her were well thought out and to the point.’

‘Practical and focused on the best interests of the client.’

‘Susan Bryson and Padraig Godfrey are standout individuals in the efficient management of complex construction litigation, with an ability to advise on related issues such as insolvency and insurance cover issues.’

‘MHC’s construction practice is very highly regarded within the industry. They are a joy to work with and I like seeing them involved whether I am on their side of the table or not. The primary reason is that they know construction; they are incredibly efficient and know how to get a deal done. They bring a lot of sense to the picture.’

‘Shane Dolan is a skilled negotiator and I would highly recommend him to my developer clients and other industry professionals. Shane knows the development market inside out and brings commercial sense to a transaction – he has a way of making the most complex development transactions straightforward. His advice is always commercial and to the point. He has an unusual ability in terms of anticipating the other side’s next move and often the complex legal consequences of clients taking particular positions during negotiations or structuring. His legal knowledge in areas outside construction often comes to the fore in negotiations too, as he also has a strong background in insurance, litigation and insolvency.’

‘Senior associate Paul Bassett in particular is worthy of mention. Paul is incredibly smart and very highly regarded.’

‘The team are incredibly professional in every way, and they combine their professionalism with the ability to give the client a fantastic service. Nothing is a problem and all the members of the team are very approachable and generous with their time and information. They are my go-to team for construction contracts and construction-related issues.’

‘Shane Dolan and Paul Bassett are both at the top of their game. They are professional and competent in all our dealings. What sets them apart is that they have a very good manner in dealing with clients and that, backed up by their vast knowledge, makes them ideal representatives.’

‘Mason Hayes & Curran are the only firm I would go to for construction-related queries.’

‘MHC are straight talking and quickly identify and resolve matters in a practical and commercial way for clients. Their strength in numbers means they are always in a position to provide a good level of support, which makes them attractive.’

‘Rory Kirrane is a standout individual. He is practical and commercial in equal measures and is always available when required.’

‘Paul Bassett is also recommended. He is quick to identify issues and provide practical solutions.’

‘They stand out for their attention to detail, their ability to convey information in a clear, concise and logical way, and their ability to draw reasonable, logical conclusions or assumptions from limited information.’

‘Rory Kirrane, Hannah Devoy and the team provide excellent services, demonstrating professionalism as well as a high level of integrity and attention to detail at all times. They are highly knowledgeable in their field, get results and deliver everything in a very confident, professional manner. They are efficient in their time management without sacrificing quality.’

‘Up-to-date, technically literate, combative when necessary.’

‘It is better to have Rory Kirrane on your side than off. Susan Bryson is a skilled facilitator.’

‘We’ve received very good advice, very efficiently. No job is too small… or too large. We can trust their judgement.’

‘Our go-to person is Susan Bryson for all construction matters, and indeed issues beyond but related to construction, such as licences for use of properties and transfer of ownership. She is very knowledgeable, decisive in her advice and inspires confidence.’

Key clients

Irish Life





P.J. Hegarty & Sons

Chartered Land

Irish Water


University College Cork


Dun Laoghaire Harbour Company

Mercury Engineering


NTR plc


Health Service Executive



Gas Networks Ireland

Environmental Protection Agency

Data privacy and data protection Tier 1

With 'deep subject-matter expertise', Mason Hayes & Curran LLP counts a growing number of global technology companies among its clients. The team handles contentious and non-contentious matters, from advising on cross-border data transfers, data security breaches and GDPR compliance to representing clients in significant data privacy-related litigation. It also handles high-profile Data Protection Commission investigations. 'True standoutPhilip Nolan leads the practice, while Robert McDonagh advises technology and financial services clients on GDPR compliance and other matters. The team's partnership ranks were bolstered by the promotions of John Farrell and Brian Johnston in April 2019, and it also draws on the support of senior associate Jevan Neilan, who has extensive experience advising social media companies, including on data subject rights compliance, and of Oisín Tobin in the San Francisco office.

Practice head(s):

Philip Nolan


The Mason Hayes & Curran privacy team have unrivalled expertise and industry knowledge in their area.

Philip Nolan is a heavyweight in his field – he provides practical, commercial, easy to digest advice.

Oisín Tobin (San Francisco) is super accessible.

Mason Hayes has extensive experience dealing with the Data Protection Commission – it’s extremely valuable. They are able to advise on probable outcomes with respect to regulator interaction.

I’m really pleased with how responsive the team is, even across multiple time zones. They give pointed advice and are good at debating options and interpretations. I appreciate how collaborative they are.’

They have deep subject matter expertise with strong technical experience. They provide excellent client service and response times. They have a strong sense of the regulatory landscape and priorities, helping to separate theoretical from actual risk.

Philip Nolan and Oisín Tobin are true standouts in the data protection space. They know our business, provide terrific client service, give practical advice that can be operationalised, they continue to stay current, and they have excellent relationships with key regulators.

Key clients







PwC Ireland

Etsy Ireland

Slack Technologies Limited

Airbnb Ireland

Nextdoor EMEA






Web Summit


Dispute resolution Tier 1

'Very responsive and commercially focused', the team at Mason Hayes & Curran LLP is noted for its strong track record of handling Superior Court cases. The team handles litigation in a wide range of sectors, particularly financial services, built environment, technology, energy, insurance and healthcare, and also represents clients in government and regulatory inquiries. Other areas of expertise include professional indemnity claims and charities and childcare-related litigation. Maurice Phelan heads the practice and specialises in banking and insolvency litigation, while the 'experienced' Liam Guidera is highly active in investigations and in alternative dispute resolution. The 'extremely astute' Colin Monaghan, who was promoted to partner in June 2018, has experience in high-profile financial services and technology sector litigation.

Practice head(s):

Maurice Phelan


Mason Hayes & Curran have a competitive edge in terms of sector and practice area expertise and a key focus on providing clients with insights and thought leadership.’

Liam Guidera gave exceptional personal commitment to assignments we worked on with him.’

Very responsive and commercially focused – they instinctively understand the needs of clients.’

Peter Johnston is a highly skilled and tactically astute lawyer in litigation and has delivered very positive outcomes.’

At the forefront of their approach are the commercial needs of clients – all of their advice hinges on those needs. Relatedly, the team is extremely efficient and responsive. They communicate in plain language and get quick answers from counsel where that is required.

Colin Monaghan is extremely astute, both commercially and legally. He builds a good rapport with clients and counsel and is skilled at listening to different points of view and arriving at a strategy. He has particular strength in technology and data protection litigation.

The MHC team are practical, approachable and understanding of the client’s needs and concerns. The team really invest in client relationships and take the time to get to know the client’s objectives and overall strategy.’

Sinéad Power is a standout partner – she thinks around the corner and sees potential developments before the client.

They prepare very well and are willing to compromise.

Liam Guidera is excellent at dealing with litigation, especially negotiations.’

Liam Guidera is one of the most experienced practitioners in the jurisdiction in the field of dispute resolution. His expertise in high-level mediation was invaluable.

Liam Guidera is Ireland’s paramount practitioner in the field of ADR. He is strategically brilliant and always available to counsel and to the clients.

Associates Conor O’Leary, Orla O’Leary and Shane Glynn are excellent.

The team quickly developed a good understanding of what was important for us and was able to offer advice to help us achieve that.

Liam Guidera and Conor O’Leary both provided a lot of attention to the case and demonstrated that they really cared about the outcome.’

There is access to partners when necessary.

Maurice Phelan is responsive to client needs and adopts a practical and commercial approach.

The team are very knowledgeable with a very good understanding of our business. They are practical in managing issues. They are focused, attentive and very professionally engaged. We have a high level of trust in the team’s competence and capabilities.

John O’Leary is very capable, intelligent and professional. He has a very good understanding of our business and that assists in identifying the best solution to an issue.’

Senior associate James Morrin is very capable and professional.’

Depth of knowledge on an individual basis and as a group. A wealth of internal resources to leverage from for every issue, each with vast expertise. They are on point. They are calm but sharp.’

They have ability to read situations and take the correct course of action, always with a sharp and prompt response.’

Maurice Phelan is as sharp of a mind as there is – calming and focused and invaluable.’

Mason Hayes & Curran have a very experienced team. Their key strengths lie in the level and range of experience they possess in key areas of the law. Not only do they have a keen eye for optimising representation for the client, but they also have the ability to accurately assess the risks associated with pursuing a dispute to final resolution in all circumstances.

The individuals we work with stand out because they have invested time and effort in becoming intensely familiar with our business and the contractual challenges facing us on a day-to-day business.’

The team are incredibly responsive, pragmatic and a joy to work with. The individuals I have worked with have particular expertise in technology (including data privacy) and regulatory disputes.

Peter Johnston and Colin Monaghan stand out.

It is their passion and determination to succeed that sets them apart.’

Gareth Steen would be my first point of contact on any issue. His ability to put himself in his client’s shoes, understand the risks and work with us to develop an appropriate strategy sets him apart.

Key clients

Bank of Scotland

Facebook Inc

Permanent TSB

Allied Irish Banks p.l.c.

Chubb Insurance Company of Europe

Teva Pharmaceutical Industries Limited

International Transport Workers’ Federation

Commission for Communications Regulation

Department of Communications Climate Action & Environment

Ulster Bank Ireland DAC

Employment Tier 1

Offering clients a ‘no-nonsense, plain-speaking approach’, Mason Hayes & Curran LLP's employment team has recently handled a wide variety of contentious and non-contentious matters. A particular highlight was its work for the International Transport Workers' Federation in cases involving exploited immigrant fishers on Irish boats; Melanie Crowley, who is valued by employers for her 'expert advice and accessibility', led the advice. The team, which was recently strengthened at partner level by Paul Rochford's promotion, also includes Ronnie Neville and senior associate Orla O’Leary.

Practice head(s):

Melanie Crowley


‘What makes this practice unique is their no nonsense, plain speaking approach to client interaction. There is simply no lawyer jargon, they understand our business and their advice is expressly tailored to the needs of our multi-faceted and complex business model.’

‘I dealt with Paul Rochford. He was excellent, professional yet approachable.’

‘The employment team are the “go-to” experts on employment law in Ireland. They’re tuned into what’s going on locally, and especially adept at advising US-based tech clients.’

‘Melanie Crowley is a real gamechanger. She is one of the most knowledgeable and practical outside counsel I work with in any country.’

‘I would have to call out Melanie Crowley and her team for her depth of knowledge, speedy turnaround of any request I have ever made of her, her expert advice and accessibility. Her approach has always been to work with me in partnership.’

‘Melanie has been a daily touch point for me and my closest team member for our Irish operations. Always willing to talk despite time zone challenges! And on top of that she is a kind and fun person to spend time with – I could not run my organization without her.’

Key clients

International Transport Workers’ Federation

Kerry Group

Irish Hotels Federation

National Museum of Ireland

Balfour Beatty

Permanent TSB




Energy and natural resources Tier 1

The energy and natural resources practice at Mason Hayes & Curran specialises in project finance, development, acquisitions, thermal and renewable energy matters. The team is jointly headed by energy-related construction expert Rory Kirrane and Will Carmody  and combines experience from across the firm's construction, corporate, real estate, environment, planning competition, regulatory, banking and procurement practices. Eoin Cassidy is another key name to note at the practice; he acts for developers, his recent work includes acting for funders and investors on the development of onshore wind farms with a cumulative capacity in excess of 1GW. David Gunn was a new arrival from Beauchamps.

Practice head(s):

Rory Kirrane; William Carmody


Mason Hayes & Curran really understand our businesses and have an excellent breadth of legal expertise.

Very good strength in depth.

The team has excellent knowledge of the energy sector in Ireland and of how it is impacted by national and European law and regulations.

They have extensive experience in assisting the developers of large energy related projects.

Rory Kirrane provides considered, pragmatic, advice; he quickly gets to the crux of the matter, feeding in to wider strategy.

Hannah Devoy is responsive and concise with her advice.

Will Carmody is a very strong lawyer with a strong commercial perspective.

I found Deirdre Nagle to be a dedicated, client focused and hardworking lawyer with exceptional knowledge and experience in the area of energy law and regulations in Ireland.

Key clients

SSE plc

Irish Water

Norddeutsche Landesbank Girozentrale


Bank of Ireland

EirGrid plc

NTR plc

Ulster Bank


Allied Irish Banks, p.l.c.

Axpo Trading

Environmental Protection Agency

EU and competition Tier 1

Merger control is a particular strength for Mason Hayes & Curran LLP, but the 'strong' team has also been active in high-profile investigations, litigation, state aid and procurement matters. The practice is well known for advising on competition matters in the media, technology and energy sectors, and also acts for a number of private equity firms. 'Standout' team head Niall Collins has extensive merger control experience; newly promoted partner Tara Kelly, who is 'extremely hardworking and tenacious', has expertise in international competition investigations; and Michael Madden specialises in state aid, media mergers and economic regulation.

Practice head(s):

Niall Collins


Excellent quality advice.

Tara Kelly is extremely hardworking and tenacious. Charm, intellect and work ethic of the highest order.

Niall Collins is the standout in a strong team. Commercial, charming and with a forensic approach to detail, he is a delight to work with.

We always use Mason Hayes as our first port of call due to the excellent experiences we have had to date.

Niall Collins and Tara Kelly are extremely responsive and always available to discuss key aspects of the Irish merger control regime.

Key clients

Elis S.A. / Berendsen

21st Century Fox

The Carlyle Group

Ticketmaster / Live Nation

CNH Industrial / Iveco

Discovery Communications

FBD Insurance

Endless LLP

Fane Valley Co-Operative Society Limited

Valero Energy

McKesson Corporation (United Drug)

The Blackstone Group L.P.

KKR & Co. Inc.

Kerry Group

Platinum Equity Group


Nest Labs (Google)

British Telecommunications

Department of Communications


Healthcare and life sciences Tier 1

Mason Hayes & Curran LLP's 'strong' team advises on corporate matters in the life sciences sector, including M&A, fundraisings and licensing transactions, as well as handling patent litigation and regulatory advice. It also acts for a range of public and private health sector clients in litigation and provides advice on healthcare law. Among its clients are pharmaceutical and medtech companies, research institutions, hospitals and state agencies. Martin Kelleher advises life sciences clients on corporate transactions, while on the healthcare side the 'excellent' Kevin Power and 'experienced' Gemma Coady handle product liability and medical negligence claims. The team was also strengthened by the arrival of regulatory specialist Michaela Herron from Bristows LLP.

Practice head(s):

Kevin Power; Martin Kelleher


Mason Hayes & Curran is a firm of excellent lawyers and a very professional firm to work with and to depend upon.

Gemma Coady is a very experienced lawyer who has worked on catastrophic cases for years.

Kevin Power is an excellent lawyer who specialises in medial negligence cases.

Keelin Cowhey and senior associates Katie McAuliffe and David Hickey are very able and specialise in the area of medical negligence cases.

All very competent and trustworthy

The team has a practical, friendly and honest approach.

Brian McElligott’s understanding of life sciences, healthcare and emerging technologies sets him apart from the rest. He is passionate yet practical and he has no problem picking the phone up for a quick, pragmatic chat.

Very strong team. Good communicators. It is their attention to detail which sets this team apart.

Kevin Power is an exceptionally safe pair of hands. His knowledge and experience in the healthcare arena is unparalleled. He is solution driven and very proactive. An excellent negotiator.

They have a deep understanding and expertise in the sector.

Brian McElligott is an experienced IP lawyer who has a broad knowledge base spanning the different IP areas, and who is very comfortable handling complex IP transactions. He is a gentleman who is very popular with colleagues and clients alike.

Excellent patent litigation and product liability capabilities, particularly in the life sciences area.

Gerard Kelly is a respected and capable life sciences patent litigator. He really knows his stuff and exudes a calm authority.

Michaela Herron is a fantastic lawyer, loved by clients and with a highly strategic approach to threatened and actual litigation.

Key clients

Clinical Indemnity Scheme of the State Claims Agency

Health Service Executive

Quest Diagnostics Incorporated

Allergan Limited

Voluntary Healthcare Forum

St Patrick’s Mental Health Services

Mater Misericordiae Hospital, Dublin

The Nursing & Midwifery Board of Ireland

Child and Family Agency (Tusla)

The Irish Medical Council

Information technology Tier 1

Mason Hayes & Curran LLP is known for its strong client base of multinational technology companies which have their European headquarters in Ireland, while other clients include media, financial services and insurance companies. The 'business-focused' team has experience in outsourcing deals, IT sector disputes, regulatory and IP issues, and GDPR compliance. The 'totally tuned-in' Philip Nolan leads the practice; Robert McDonagh advises on large-scale outsourcing transactions; Wendy Hederman has experience in commercial agreements, technology licensing and ecommerce; and John Farrell has expertise in new and disruptive technologies.

Practice head(s):

Philip Nolan

Other key lawyers:


The Mason Hayes & Curran team has worked hard to establish a one-on-one relationship with me and my company. They always make me feel like they are not just my law firm but my partner.

They are always quick to respond. Guidance is always pointed and practical. Philip Nolan is excellent, always providing practical advice.

Business-focused advice, clear understanding of the challenges facing multinational companies, show great depth as a team.

Philip Nolan is totally tuned in to the privacy challenges facing the multinational.

Key clients





Lime eScooters



Commission for Communications Regulation (ComReg)

Department of Communications, Climate Action and Environment

Virgin Media

Insolvency and corporate restructuring Tier 1

Mason Hayes & Curran LLP is heavily involved in matters involving non-performing loans and distressed assets. In a particular highlight, the firm is acting for Permanent TSB on the sale of €2.2bn of residential loans. The firm also assisted with complex receiverships and examinerships. The practice is led by Maurice Phelan and the 'brilliant' Judith Riordan. The team also includes Gareth Steen, 'a very strong' lawyer who is active in all areas of restructuring and insolvency, recently promoted partner David Ormsby, and Frank Flanagan, who successfully defended Permanent TSB in litigation related to a loan sale.

Practice head(s):

Maurice Phelan; Judith Riordan


‘The Mason Hayes & Curran insolvency & restructuring team adopt a no nonsense practical approach to complex problems and are competitive on fees. While all partners are excellent in the area of insolvency & restructuring, each of the three partners has their own area of expertise & specialism which is very helpful.’

‘I find Mason Hayes & Curran unique in that they balance an assertive style with very carefully considered legal advice. They are excellent at anticipating problems and steering around those.’

‘Declan Black is a superb lawyer. He is one of the leading litigators and insolvency lawyers in Ireland.’

‘Judith Riordan is a brilliant lawyer. Her writing and drafting is top quality. She is very responsive and carefully listens to clients. Her advice is always really well considered.’

‘Gareth Steen is a very strong insolvency lawyer. He knows the law and the courts system backwards and he knows how to handle tough cases and difficult opponents.’

‘Maurice Phelan, Judith Riordan & Gareth Steen work very closely as a team and there is a consistent level of quality, engagement and expertise no matter which partner we work with on our engagements with MHC.’

Key clients


Carlo Tassara Assets Management

KBC Bank Ireland

Allied Irish Banks plc



Dixons Carphone

Grant Thornton

Bank of Scotland

Ulster Bank Ireland DAC

Insurance Tier 1

Mason Hayes & Curran LLP fields 'an extremely strong team that delivers an excellent client focused service'; it handles claims and regulatory matters of high-value and significant complexity. The firm has been particularly active in high-profile litigation and handling cases with potential liabilities in the millions of euros. Its regulatory knowledge and experience has allowed it to handle matters involving approval from the Central Bank of Ireland. The practice is led by the 'extremely competent' Rachel Kavanagh. Deirdre Munnelly specialises in contentious matters, standing out for her 'attention to detail', while Ailbhe Gilvarry handles advisory work and litigation.

Practice head(s):

Rachel Kavanagh


‘I feel what makes this practice unique is the professionalism and the friendliness of the firm. The practice appears to be run as a tight ship as responses are prompt and thorough, the points of contact are always contactable and will call back when they say they will. This work ethic allows me to trust them as I know they are on top of things and nothing will slip past them.’

‘One of the best legal firms that we deal with. We have a dedicated team of Solicitors looking after our work, all of whom are professional, proactive, easy to deal with and above all else extremely competent at what they do.’

‘The individuals that I work with always come across calm and friendly. They always have time for their clients and are very accommodating. They adapt very well to their client’s requirements. I feel that special credit must be given to Laura Keane, Associate for her work ethic, quality of work, and being such a personable person and embodies all the above good things I have mentioned.’

‘Rachel Kavanagh is one of the best in defence litigation. Tenacious, fully committed and her infectious enthusiasm to provide a first class service is great to observe.’

Mason Hayes & Curran offer a broad base of expertise which surpasses other firms. They offer a willingness to engage on all levels which has helped build up long term relationships with clients and insurers. Their fee structure is very transparent, and they are extremely practical in regards to payment of the same.

‘The defence litigation team are an extremely professional and focussed team who listen carefully to the clients’ requirements and then go above and beyond to produce excellent results.’

‘Laura Keane and Rachel Kavanagh. Both offer exceptional service and broad knowledge of what is required to ensure the client’s best interests are protected. As our client base are effectively self insured they are very cost conscious and both Laura and Rachel approach the claims on the basis of real client money being spent. This is greatly appreciated by client and us.’

‘The level of service provided by MHC is second to none. Whilst the entire team are excellent, I would specifically reference Rachel Kavanagh and Deirdre Munnelly. They provide an attention to detail in what are always comprehensive advices and deal with our files to the very highest of standards.’

Key clients


State Claims Agency




Davies Ireland




Intellectual property Tier 1

Mason Hayes & Curran LLP has a prominent practice in the area of contentious IP law. Practice head Gerard Kelly has acted in some of the most prominent IP law cases of 2019. The firm's expertise in contentious matters was demonstrated by its representation of Teva Pharmaceuticals in a high-profile dispute over its launch of a generic retroviral HIV drug.  The firm also handles brand portfolios for a number of companies. Brian McElligott specialises in non-contentious work, and led on managing Boyne Valley Group's trade mark portfolio. Richard Woulfe retired from the practice in 2019.

Practice head(s):

Gerard Kelly

Key clients

Teva Pharmaceuticals

Boyne Valley Group

Fresenius Kabi Deutschland

Facebook Ireland

BFree Foods

Irish Educational Publishers

Media and entertainment Tier 1

Mason Hayes & Curran LLP counts leading media companies among its clients, with a particular focus on acting for online and social media companies. The practice spans high-profile defamation cases and other litigation; media rights and production agreements; broadcasting regulation and licence applications to the Broadcasting Authority of Ireland; and copyright issues. Michael Madden, whose clients include broadcasters, government bodies and online media companies, leads the team, which was recently bolstered by the arrival of senior associate Gráinne Morrissey, who specialises in broadcasting and telecoms law, from Squire Patton Boggs in London.

Practice head(s):

Michael Madden

Key clients

Facebook Ireland Limited


Virgin Media

Three Ireland (Hutchison) Limited and Palmerston Limited

Raidió Teilifís Éireann (RTÉ)

Sports Information Services (SIS)

World Meeting of Families 2018

Oath (EMEA) Limited (formerly Yahoo!)

Pensions and employee benefits Tier 1

Mason Hayes & Curran LLP's practice advises on some of the most complex issues in pension law. In the past year, its work has included advising on the operation of a cross-border pension scheme in Ireland, and it is also a popular choice for referrals from international firms. The firm also handles contentious matters. Stephen Gillick became head of the practice in 2019, taking over from the 'extremely knowledgeable and experienced' Peggy Hughes. Hughes continues to advise companies on pension matters, and recently advised a pension consultancy and its client on a risk reduction exercise for its defined benefit scheme.

Practice head(s):

Stephen Gillick


‘They present advice in a simple clear manner. They take a pragmatic view which is very important when dealing with complex issues where there may be ambiguity.’

‘Peggy Hughes is an extremely knowledgeable and experienced pensions lawyer. I have found Peggy to be very personable and approachable, pragmatic and solution orientated. Peggy is excellent at identifying the core issues at stake and communicating key legal concepts clearly and concisely to business stakeholders. I would not hesitate in recommending Peggy for her expertise in pension law.’

‘Peggy Hughes is very approachable and great to deal with. She will pull out the stops to ensure deadlines are met.’

Planning and environment Tier 1

The 'extremely experienced' planning and environment team at Mason Hayes & Curran LLP acts for state bodies, banks, investors and developers on a wide variety of planning and environmental matters. Led by the 'excellent' Deirdre Nagle, the team advised EirGrid on its strategic infrastructure planning application for an upgrade to the transmission network supplying power to Intel’s manufacturing plant in Leixlip and assisted SSE on its planning consents for a power plant in Platin. Eoin Cassidy is also noted for his 'highly specialised knowledge of the energy infrastructure, which is rare to find in other firms'. 

Practice head(s):

Deirdre Nagle


‘Mason & Hayes & Curran planning and environment team has particular experience in the area of strategic development, with a wealth of knowledge of the consenting, judicial review and enforcement processes arising.’

‘The practice provides the legal expertise on planning and environment matters that is backed up with unrivalled experience in delivering major infrastructure, including through complex legal processes’.

‘The team stay involved with the wider industry to keep themselves informed and also to be part of the solutions that need to be implemented in order for projects to advance.’

‘The team are extremely experienced, have a specialist knowledge of the areas referred to and adopt a very intelligent approach which identifies potential solutions at an early stage and then work assiduously to achieve this solutions.’ 

‘Deirdre Nagle has an in-depth knowledge and understanding of the nature of development and the requirements to obtain development consent and commercial objectives, as well as extensive litigation experience.’

‘Deirdre Nagel has a wealth of expertise and experience in the delivery of strategic infrastructure, yet is able to articulate her expertise in clear and simple language.’

‘Both Eoin Cassidy and Deirdre Nagle, have a highly specialised knowledge of the energy infrastructure which would be rare to find in other firms.’

‘Deirdre Nagel is excellent. Very good to work with and knowledgeable in the energy sector.’ 

Key clients

EirGrid plc

SSE Renewables


Grangegorman Development Agency

P J Hegarty & Sons UC



Environmental Protection Agency

Core Industrial REIT

Nord LB

Ulster Bank


Public sector Tier 1

The 'experienced' team at Mason Hayes & Curran LLP is highly active in litigation in the public sector, including judicial review proceedings, statutory appeals and public procurement challenges. High-profile public inquiries are also a key area of work, and the team has a strong reputation for professional regulatory matters, including fitness to practise and disciplinary inquiries. Practice head Edward Gleeson advises a number of charities and not-for-profit organisations; Catherine Allen specialises in investigations and judicial review; Niall Michel focuses on regulation in financial and professional services, utilities and aviation; and the 'standout' Lisa Joyce has a particular focus on information law.

Practice head(s):

Edward Gleeson


Easy to work with. Significant partner expertise and know-how. Work done in a timely manner.

Niall Michel has significant public sector and administrative law expertise and know-how. He is easy to work with, understands the relevant issues, gets to the point quickly and manages disputes efficiently.

The team is responsive and understanding of client needs.

Lisa Joyce is technically very good – she understands the public sector and gives practical advice.

Mason Hayes & Curran has an experienced public law team. Their attention to detail and thoroughness is impressive. The team proactively manage their files and are highly accessible to clients.

From partner to associate, the team are professional and a pleasure to work with.

Lisa Joyce particularly stands out – she is highly experienced in the public law area and is conscientious and thorough with excellent judgement. She is also highly responsive to clients and proactive in meeting their needs.

Key clients

Veterinary Council of Ireland

Arthropharm (Europe)

St Patrick’s Mental Health Services

Central Bank of Ireland

Ulster Bank Ireland DAC

Nursing and Midwifery Board of Ireland

Commission for the Regulation of Utilities

Sustainable Energy Authority of Ireland

Transcore, LP

Sea-Fisheries Protection Authority

Medical Council

Solicitors Disciplinary Tribunal

Department of Communications, Climate Action & Environment

Commission for Aviation Regulation

Health Insurance Authority

Health and Safety Authority

National Museum of Ireland

Electricity Supply Board

Office of the National Lottery Regulator

Environmental Protection Agency

Health Service Executive

Cavan and Monaghan Education and Training Board

Inland Fisheries Ireland

Child and Family Agency

Roman Catholic Archdiocese of Dublin

Real estate Tier 1

The 'practical and commercially minded experts' at Mason Hayes & Curran LLP specialise in residential and commercial real estate property. Its client portfolio includes companies from a variety of industries, including energy, hospitality, retail, financial services and technology, and it acts for international investment companies, as well as high-profile domestic institutional landlords. The team is led by Vanessa Byrne, a specialist in property transactions, and landlord and tenant matters, and Michael Dorran, who mainly advises institutions and investors. Tom Davy is also noted.

Practice head(s):

Vanessa Byrne; Michael Doran


‘Practical and commercially minded experts in their field.’

The real estate team are very strong on asset management issues and leasing. They are very commercial in their approach to negotiation and resource their team well.

High standard, partner involvement, flexible can do attitude.

I was most impressed with the firm’s commercial acumen, as sensible commercial guidance was given along with legal advice.

The team are very open to tailoring a bespoke programme or project of work that suits their client’s needs.

From my experience, working with MHC on real estate, we find their knowledge, experience and support meets our various business needs without exception.

Vanessa Byrne, David Mangan and Adam Hogg deserve particular mention here. All three are very personable and approachable and are practical, commercially minded subject matter experts who know their industry.

Michael Doran provides an exceptional service to us.

Tom Davy was very commercial and resolved our transactional issues very swiftly.

Adam Hogg – knows his client very well.

Jamie Fitzmaurice, Janet Cafferky and Shane Dolan have each been very helpful at each of our engagements regarding real estate.

Tom Davy, who led the team, was pivotal in managing the complex transaction with so many moving parts.

Key clients


Irish Life Assurance plc


Hibernia REIT

Chartered Land

Irish Water

Lioncor Developments



Allied Irish Banks, p.l.c.

Permanent tsb

Kennedy Wilson

Irish Residential Properties REIT plc

Dublin Institute of Technology


Irish Rugby Football Union (IRFU)

Circle Voluntary Housing Association Rohan Holdings Limited

NTR plc.


Glenveagh Properties plc.

Telecoms Tier 1

Mason Hayes & Curran LLP advises national and international clients on a range of contentious and non-contentious telecoms matters, including regulatory enforcement, compliance with EU and Irish telecoms regulations, joint ventures and the establishment of new operators, and the procurement and rollout of major telecoms projects. The practice is led by Michael Madden, who specialises in telecoms regulation, while Edel Hartog has expertise in the regulatory, commercial and corporate aspects of telecoms projects, including commercial contracts. The team was strengthened by the arrival of senior associate Gráinne Morrissey, who focuses on communications regulation, from Squire Patton Boggs in London.

Practice head(s):

Michael Madden

Key clients

Commission for Communications Regulation

Department of Communications, Climate Action and Environment

BT Ireland

Virgin Media

Three Mobile







Genesys Telecommunications

Tata Communications

Sprint Corporation

IP Telecom



J2 Global

Oath (Verizon)

White-collar crime Tier 1

Noted for its 'wide breadth of knowledge and experience', Mason Hayes & Curran LLP counts a number of major technology and financial services companies among its clients. The team has experience of representing clients in public inquiries into corruption and regulatory and internal investigations, including multi-jurisdictional matters. It also advises on regulatory compliance and the drafting of anti-bribery and corruption policies. Practice heads Emer Gilvarry and Liam Guidera, who has significant experience in public inquiries and tribunals, are singled out for their 'keen judgement'. Colin Monaghan has particular expertise in investigations in the financial services and technology sectors, John O’Leary specialises in data investigations, and senior associate Conor O’Leary has experience in investigations in the financial sector. The team was further strengthened by the arrival of Muireann Dennehy, who joined from Jones Day in London.

Practice head(s):

Emer Gilvarry; Liam Guidera


Liam Guidera is exceptional.

The keen judgement of Liam Guidera and Emer Gilvarry sets the team apart. Their clear strategic oversight and good sense permeates this practice. They both have an ability to guide and direct a client toward options that are prudent and efficient.

Liam Guidera has a poise and grace that commands respect. He has a reputation for shrewd advice and clear thinking. His judgement and discretion are vital.

Emer Gilvarry operates at the highest level of discretion and possesses the energy and wisdom needed to transform complex, fluid situations into clear, calm advice.

The Mason Hayes & Curran team have a wide breadth of knowledge and experience that allows them to provide exceptionally thoughtful advice. In addition to high-end expertise and strategic knowledge in the area of investigations, tribunals and commissions, the firm can draw on specialised sector-specific expertise to ensure that advice is informed and knowledgeable.

Liam Guidera has enormous experience in addressing the complex legal issues that arise in high-profile investigations and inquiries. In addition to his deep knowledge of the legal issues and evidential matters that will arise, he has an extremely effective strategic and personal approach that ensures the needs of his clients are promoted and protected.

Liam Guidera is one of the most experienced practitioners in the field of white-collar crime in this jurisdiction. His expertise and strategic insight was invaluable.

As well as providing strategic leadership, Liam Guidera was always available to counsel and clients.

Associates Conor O’Leary, Orla O’Leary and Shane Glynn are excellent.

Key clients



International Transport Workers Federation

Ulster Bank Ireland DAC


Central Bank of Ireland

Trinity College Dublin

National Museum of Ireland

Asset finance Tier 2

'A front runner in aviation finance', Mason Hayes & Curran LLP acts for a broad domestic and international client base including banks, export credit agencies, aircraft lessors and manufacturers, and major commercial airlines. The team advises on funding and financing, including ABS transactions; trading, including aircraft portfolio acquisitions and disposals; leasing; and corporate lending in the aviation sector. Practice head Christine O’Donovan has particular expertise in large-scale equipment, aircraft and engines, and cross-border leasing. The team's partnership ranks were recently bolstered by the transfer of Barry Walsh from the financial services practice.

Practice head(s):

Christine O’Donovan


The team have the necessary expertise and experience in the aircraft finance field. They are very responsive and consistently meet the required time-frames. Their responsiveness and breadth of experience are the key strengths.

Christine O’Donovan always provides first-class advice and transaction support. They have an in-depth knowledge of the law and procedures, provide succinct and to-the-point advice in a client-friendly manner, and are both a pleasure to deal with.

A front runner in aviation finance, the team at Mason Hayes & Curran consistently offers a high standard of service in a very approachable and responsive manner.

Christine O’Donovan has a unique ability to understand a client’s needs, sometimes even before they do! Christine has extensive expertise on the Cape Town Convention and its operation.

Joe Maxwell is very personable and an able associate who responds to clients with an efficient and professional approach.

The team are hugely responsive and will drop everything if something is urgent. They are extremely commercial and can assess a legal consideration from multiple angles.

Christine O’Donovan is the most responsive partner in any law firm I have ever come across and she has dealt with every scenario that we have faced in our business. No matter what she has on her plate, she is always available to us. I cannot recommend her highly enough.

Key clients

Airbus Financial Services (and affiliates including ATR)

Airbus Helicopters


Euler Hermes

Export Development Canada

Export-Import Bank of the United States

J.A. Mitsui

KV Aviation Group

Montrose Global Aircraft Leasing Limited


Willis Lease Finance Corporation

UK Export Finance

Vallair Solutions SARL

Capital markets Tier 2

Mason Hayes & Curran LLP's 'very responsive and flexible' ECM team acts for a number of Irish-quoted companies, and has longstanding experience advising on listings on the Irish and London stock exchanges, including listings following corporate inversions, takeovers, and secondary fundraisings. 'Capable markets lawyer' Justin McKenna leads the team; Paul Egan regularly advises public, private and state-owned companies on securities law; and David Mangan has been active advising on public offers. Daragh O’Shea rejoined the firm from an in-house role overseas to build the DCM practice.

Practice head(s):

Justin McKenna; Daragh O’Shea


The practice is very responsive and flexible regarding a client’s specific requirements and deadlines.

The individuals are easy to deal with and always available.

Mason Hayes & Curran is an exceptional law firm with talented lawyers. They see the bigger picture, so can provide commercially savvy advice. It is a very responsive team that is always available and shows a willingness to be flexible and adapt to our business needs.

Key clients

Scisys Group plc

Kerry Group plc

Norish Group plc

Ormonde Mining plc

Donegal Investment Group plc

Projects and PPP Tier 2

Mason Hayes & Curran LLP advises on some of the largest matters in projects and PPP, including in the education, construction, and energy sectors. Recent highlights include its advice to Exyte Northern Europe on the construction of a new plant for Intel. The practice is jointly headed by Rory Kirrane, who has experience in energy-related projects and 'provides considered, pragmatic advice', and Will Carmody, a 'very strong lawyer' who specialises in project financing. The group frequently works alongside other teams in the firm and, together with the firm's technology group, is advising on the National Broadband Plan. Associate Anne McCarthy, who focuses on construction matters, is also noted.

Practice head(s):

William Carmody; Rory Kirrane


‘Will Carmody is a very strong lawyer with a strong commercial perspective. He has the ability to stay across the detail and make himself available for clients, despite his seniority.’

‘Rory Kirrane provides considered, pragmatic advice; he quickly gets to the crux of the matter, feeding into wider strategy.’

‘Mason Hayes and Curran really understand our businesses and have an excellent breadth of legal expertise.’

Key clients


Irish Water


Bank of Ireland


Ulster Bank

Greencoat Renewables

Norddeutsche Landesbank Girozentrale

Allied Irish Banks

Irish Life

University College Cork

Tax Tier 2

Noted for its 'responsiveness and technical strength', Mason Hayes & Curran LLP counts leading domestic and international corporates and financial institutions among its clients, with particular expertise in advising technology multinationals on the tax implications of establishing operations in Ireland. Other areas of expertise include assisting with major group reorganisations involving Ireland; securitisation advice on the use of Irish SPVs; and real estate structuring. Niamh Keogh has significant experience advising on the use of Irish regulated fund structures and securitisation vehicles, and ‘incredibly responsive and detail-oriented’ senior associate Eilís Griffin is also recommended. Maura Dineen departed for DLA Piper and former practice head John Gulliver also left the firm. Niamh Caffrey was a new arrival from Eversheds Sutherland.

Practice head(s):

John Gulliver


The tax team is responsive, technically good (even in niche areas) and helpful.

The qualities we value are their responsiveness and technical strength.

Niamh Keogh is keen to help and delivers once instructed, often in very tight timescales, and is always very pleasant to deal with.

Mason Hayes & Curran’s team has an expertise and depth of knowledge that allows them to quickly respond to questions and inquires. This allows for an efficient working relationship that helps to keep projects moving swiftly.

Senior associate Eilís Griffin is incredibly responsive and detail oriented. Her ability to make complex issues easy to understand is very helpful in crafting appropriate solutions.

Key clients

Blackhawk Network Holdings Inc

Fane Valley Co-Operative Society Limited

Allied Irish Banks Plc

Irish Residential Properties REIT plc

Irish Life


SSE Renewables Ireland Limited

Broadridge Financial Solutions


Investment funds Tier 3

The structuring and formation of UCITS funds is an area of focus for Mason Hayes & Curran LLP, but the team has also been highly active advising on M&A transactions in the investment funds area, particularly deals involving Irish management companies. The team also advises on alternative investments, including private equity, venture capital and real estate funds, and on the authorisation of UCITS management companies and AIFMs. Clients include leading asset managers, promoters and investors. The practice is jointly led by Conor Durkin, whose expertise includes the formation of UCITS and real estate funds, and Rowena Fitzgerald, who has significant experience advising investment managers on regulatory matters. Senior associate Sarah Cloonan advises on a variety of Irish-regulated funds.

Practice head(s):

Conor Durkin; Rowena Fitzgerald

Key clients

Fineco Asset Management dac

FAM Evolution ICAV

Conseq Invest plc

VentureWave Capital Limited

Appian Asset Management Limited

Hauck & Aufhäuser Privatbankiers AG

Leanort Unlimited Company

TREA Capital Partners S.V. S.A.

Tetrarch Capital Limited

Vermeer Investment Management Limited

Transport Tier 3

Mason Hayes & Curran LLP is active in all areas of transport finance. The aviation finance team, which is led by Christine O’Donovan, works in close cooperation with the projects and PPP practice groups. Rory Kirrane, who is recognised for his 'excellent knowledge of shipping law', is in charge of the firm's maritime law team, which represents harbour companies, banks, contractors, underwriters and liners as well as cargo companies. Shane Dolan is the main point of contact for lenders seeking advice on the enforcement of maritime security.

Practice head(s):

Shane Dolan; Christine O’Donovan; Rory Kirrane

Other key lawyers:

Barry Walsh; Sarah Harmon; Alan Burns;


Rory Kirrane has excellent knowledge of shipping law having trained and worked in Inces London. He knows his stuff, where the problems are and what the potential solutions can be. He leads a friendly, hardworking team.

We have engaged the services of the Transport team in MHC for several years on a number of different matters.  Their professionalism, reactivity and attention to detail is excellent. Their good counsel and recommendations have helped ensure best practice within our company, including the solution of some challenging issues.

Rory Kirrane is an experienced shipping and commercial lawyer.

Hannah Devoy is a pleasure to work with and is diligent and intelligent.

The individuals on the team are always professional, flexible, never shy from challenges and always deliver on schedule. I would have no hesitation in recommending the team.

Key clients

Aer Lingus

Commission for Aviation Regulation

DB Schenker

Dublin Airport Authority

Dublin City Council

Dublin Port Company

Evergreen Shipping

Irish Aviation Authority


Inland Fisheries


Marine Institute

Mediterranean Shipping Company


Airbus Financial Services and affiliates including ATR

Airbus Helicopters

KV Aviation Group (UK & Australia)

Montrose Global Aircraft Leasing Limited (UK)

Vallair Solutions SARL

The firm:As legal and regulatory responsibilities become more complex, progressive organisations need the right advice to help realise their ambitions.  The expertise Mason Hayes & Curran brings is rooted in unrivalled knowledge of the industries in which its clients operate, so advice is always set in its commercial context. Mason Hayes & Curran empowers its international and domestic clients by giving focused recommendations and a clear understanding of their options. The firm solves the issues clients face today and anticipates the challenges of tomorrow.

Mason Hayes & Curran is a business law firm with 90 partners. These partners understand the challenges international organisations face when investing or locating in a foreign country; assisting them during initial establishment and in meeting their ongoing legal and commercial imperatives. The firm has offices in London, New York and San Francisco, three important conduits for inward investment to Ireland.

Areas of practice: 

Corporate: The firm’s corporate lawyers are recognised as the leading advisers on all types of domestic and international corporate transactions across a broad range of industry sectors. They have acted in some of the most high profile, innovative and complex M&A deals in Ireland. With extensive experience in all types of corporate transactions, they combine transactional skills with specialist expertise in banking, property, competition, employment and tax.

Contact: David O’Donnell

Dispute Resolution & Commercial Litigation: The dispute resolution team is routinely involved in complex, high profile commercial court litigation.
The team is frequently retained by international clients on multi-jurisdictional disputes which involve providing strategic guidance driven by the different systems of rules and practices worldwide.

Contact: Maurice Phelan

Employment & Benefits: The firm’s combined experience offers a unique
understanding of the challenges faced by employers in all sectors and industries. It provides a tailored approach to meet the individual needs of each
client. The team empowers employers to confidently make the right decisions. Employers rely on its comprehensive and integrated service offering. The
firm provides commercial and strategic advice on all workplace issues from recruitment to retirement.

Contact: Melanie Crowley

Financial Services & Banking: The financial services team provides high calibre advice to domestic and international clients. It regularly advises on international corporate lending, renewable energy, acquisition, asset and structured finance, debt capital markets, investment funds and regulation. Clients include leading domestic and international banks and insurers operating in

Contact: William Carmody

Projects & Energy: Energy sector clients know the firm for its work on complex transactional, regulatory and commercial issues. Clients include a number of Ireland’s most significant and strategically important players. It
has unrivalled expertise in advising on the project finance, development and acquisition of electricity generation, both thermal and renewable.

Contact: Rory Kirrane

Real Estate: With the largest real estate team in Ireland, the firm offers extensive expertise critical for structuring complex real estate transactions. It advises banks, state agencies, corporates, multinationals and both private equity and institutional investors on the most high profile mandates. The lawyers possess strong sectoral and industry knowledge particularly in the areas of energy, technology, health and hotels and leisure.

Contact: Vanessa Byrne

Technology: The technology team provides cutting edge advice
on commercial law matters to some of the world’s leading tech companies who require guidance through new and sometimes unforeseen legal circumstances. The firm advises the world’s leading social media and search organisations along with emerging startups and entrepreneurs.

Contact: Philip Nolan

Taxation: The firm’s specialist tax team comprises internationally experienced tax law partners and professionals and provides innovative and leading edge tax services to its international corporate and individual client base. Its service offering is focused on companies and individuals using Ireland as part of their global tax management strategy.

Contact: Niamh Keogh

Department Name Email Telephone
Aviation, International Asset Finance Christine O'Donovan
Banking & Financial Services William Carmody
Dispute Resolution Maurice Phelan
Real estate Michael Doran
Real Estate Vanessa Byrne
Construction Rory Kirrane
Energy & Natural Resources Eoin Cassidy
Technology Philip Nolan
Corporate / M&A David O'Donnell
Competition & Antitrust Niall Collins
Intellectual Property Gerard Kelly
Employment & Benefits Melanie Crowley
Tax Niamh Keogh
Photo Name Position Profile
Ms Jenny Ahern  photo Ms Jenny Ahern Jenny is a partner in Mason Hayes & Curran’s Financial Services team. She…
Ms Catherine Allen  photo Ms Catherine Allen Catherine is a public and information law specialist, recognised as a leader…
 Declan Black  photo Declan Black Declan is the Managing Partner of Mason Hayes & Curran. His personal…
Mr Liam Brazil  photo Mr Liam Brazil Liam is a partner on our Corporate team and has more than 27 years’…
Ms Susan Bryson  photo Ms Susan Bryson Susan is a partner on our Dispute Resolution team, specialising in Construction Law. She advises clients…
Ms Vanessa Byrne  photo Ms Vanessa Byrne Vanessa is co-head of our Real Estate team, with a practice in all aspects…
Ms Niamh Callaghan  photo Ms Niamh Callaghan Niamh is a Partner in our Corporate team where she advises charities, social…
Mr Will Carmody  photo Mr Will Carmody William is the Head of our Financial Services Department. He represents financial institutions and…
Ms Rachel Carney  photo Ms Rachel Carney Rachel is a partner in our Real Estate team and leads our specialised Residential…
Mr Eoin Cassidy  photo Mr Eoin Cassidy Eoin is a partner in our Construction department and a leading member of the Energy,…
Mr Niall Collins  photo Mr Niall Collins Niall is a partner and Head of the Competition & Antitrust team…
Mr Ger Connolly  photo Mr Ger Connolly Ger is a partner in Mason Hayes & Curran’s Employment Law &…
Ms Melanie Crowley  photo Ms Melanie Crowley Melanie is a partner and head of Mason Hayes & Curran’s Employment…
Mr Tom Davy  photo Mr Tom Davy Tom is a Real Estate partner and advises institutional occupiers, multi-national companies, funds…
Mr Michael Doran  photo Mr Michael Doran Michael is co head of mason Hayes & Curran’s Real Estate team, regularly advising institutions, investors,…
Mr Conor Durkin  photo Mr Conor Durkin Conor is a partner in Mason Hayes & Curran’s Financial Services team specialising in the…
Mr Paul Egan  photo Mr Paul Egan Paul is a former Chairman of Corporate and practises primarily in public…
Ms Rowena Fitzgerald  photo Ms Rowena Fitzgerald Rowena is a partner in Msaon Hayes & Curran’s Financial Services team specialising…
Mr Stephen Gillick  photo Mr Stephen Gillick Stephen is a Partner in Mason Hayes & Curran’s Employment Law and Benefits team,…
Ms Ailbhe Gilvarry  photo Ms Ailbhe Gilvarry Ailbhe is co head of Mason Hayes & Curran’s Insurance & Risk…
Mr Edward Gleeson  photo Mr Edward Gleeson Edward is a partner in Mason Hayes & Curran’s Litigation team and…
Mr Liam Guidera  photo Mr Liam Guidera Liam is a partner in Mason Hayes & Curran’s Dispute Resolution team,…
Mr Jason Harte  photo Mr Jason Harte
Ms Wendy Hederman  photo Ms Wendy Hederman Wendy is a partner in Mason Hayes & Curran’s Commercial team. Wendy works…
Mr Brian Horkan  photo Mr Brian Horkan Brian is a partner in Mason Hayes & Curran’s Dispute Resolution team with…
Ms Peggy Hughes  photo Ms Peggy Hughes
Ms Rachel Kavanagh  photo Ms Rachel Kavanagh Rachel is co head of Mason Hayes & Curran’s Insurance & Risk…
Mr Martin Kelleher  photo Mr Martin Kelleher Martin is a partner in Mason Hayes & Curran’s Corproate Law team…
Mr Gerard Kelly  photo Mr Gerard Kelly Gerard is a partner in Mason Hayes & Curran’s Commercial Litigation team,…
Mr Rory Kirrane  photo Mr Rory Kirrane Rory is a partner and Head of Mason Hayes & Curran’s Construction…
Ms Claire Lord  photo Ms Claire Lord Claire is a Corporate Partner and Head of Mason Hayes & Curran’s…
Mr Robert McDonagh  photo Mr Robert McDonagh Robert is a partner in Mason Hayes & Curran’s Commercial team and a…
Mr Justin McKenna  photo Mr Justin McKenna Justin is a partner in Mason Hayes & Curran’s Corporate team, specialising in…
Mr Peter McLay  photo Mr Peter McLay Peter is a Partner in Mason Hayes & Curran’s Energy and Natural…
Mr Niall Michel  photo Mr Niall Michel Niall is a litigation partner on Mason Hayes & Curran’s Public and Administrative…
Mr Ronnie Neville  photo Mr Ronnie Neville Ronnie is a partner in Mason Hayes & Curran’s Employment Law and…
Mr Philip Nolan  photo Mr Philip Nolan Philip is a partner, head of Mason Hayes & Curran’s Commercial team and a…
Mr David O’Donnell  photo Mr David O’Donnell David is a partner and Head of Mason Hayes & Curran’s Corporate…
Ms Christine O’Donovan  photo Ms Christine O’Donovan Christine is Head of Mason Hayes & Curran’s International Asset Finance team…
Mr Frank O’Flynn  photo Mr Frank O’Flynn Frank is a partner in Mason Hayes & Curran’s Corporate team. His corporate practice…
Mr Ian O’Herlihy  photo Mr Ian O’Herlihy Ian is a partner and head of Mason Hayes & Curran’s Education…
Mr Maurice Phelan  photo Mr Maurice Phelan Maurice is a partner and Head of Mason Hayes & Curran’s Dispute Resolution…
Mr Kevin Power  photo Mr Kevin Power Kevin leads Mason Hayes & Curran’s Healthcare and Medical Law Services team,…
Mr Liam Riordan  photo Mr Liam Riordan Liam is a partner in Mason Hayes & Curran’s Employment Law and…
Ms Judith Riordan  photo Ms Judith Riordan Judith Riordan is a partner in Mason Hayes & Curran’s Dispute Resolution…
Ms Elizabeth Ryan  photo Ms Elizabeth Ryan Elizabeth is a Partner in Mason Hayes & Curran’s Employment Law & Benefits team.…
Mr Oisín Tobin  photo Mr Oisín Tobin Oisín is a Partner affiliated in Mason Hayes & Curran’s technology, media…
Number of fee-earners : 280
Contact : Declan Black (managing partner)
Other offices : London
Other offices : New York
Other offices : San Francisco

Mason Hayes & Curran’s Approach to Diversity and Inclusion

What is Diversity at MHC?

Diversity means the differences between us, including our perspectives, life experiences, social and cultural backgrounds.

What is Inclusion at MHC?

Inclusion is acceptance, understanding and respect for these differences. We recognise and we value that each staff member is unique and brings a different perspective to the firm.  All employees have a role to play in embracing this culture.

Our Goals

  • To acknowledge and encourage diversity and inclusion within the firm
  • To welcome and respect individual views and experience for the benefit of colleagues and clients
  • To recognise and formalise our existing culture of openness and inclusivity=

Culture & Background
We are focused on creating a firm where race, religion, ethnicity, experience and culture are appreciated for the diverse perspectives they bring.

We strive to create and sustain a truly equal and gender balanced firm with equal opportunities and treatment for all.

We understand that disability includes both physical and mental health and we actively provide support to those who need it.

We encourage all staff to simply be themselves irrespective of gender or sexual orientation.

We recognise and understand that our people have responsibilities to their partners, parents, siblings and children.