Firm Profile > Dillon Eustace > Dublin, Ireland

Dillon Eustace

Ireland > Investment funds Tier 1

The 'very strong' and 'solution-oriented' team at Dillon Eustace counts a significant number of Irish domiciled funds among its clients, and is well known for its expertise in the alternative investment space, acting for real estate, private equity and hedge fund managers. Practice head Donnacha O’Connor has been particularly active in the establishment of private credit funds, while Brian Higgins has experience advising on ESG funds. Consultant Andrew Bates, Brian Kelliher, who is particularly experienced in fund regulation, Derbhil O’Riordan, who has notable expertise advising Cayman clients, and Cillian Bredin are also among the key contacts in the sizeable team.

Practice head(s):

Donnacha O’Connor

Other key lawyers:

Andrew Bates; Brian Dillon; Brian Higgins; Brian Kelliher; Etain de Valera; Cillian Bredin; Aisling O’Malley; Derbhil O’Riordan; Shane Coveney; Emmet Quish; Grace O’Connor


‘The lawyers I work with at Dillon Eustace seem to create hours in their day as it appears they sit there waiting for my emails to come in for them to then immediately action. It will forever be a wonder to me how a firm so busy, sought after, well established and highly reputable seem to turn my requests around so quickly and with such thorough and informative responses.’

‘My main contact at Dillon Eustace is Grace O’Connor. She is like a walking textbook of legalese, and is so well versed that she acts as the most comforting safety net in virtually all situations presented to her and projects brought forwards. No task is too great, no request too last minute – she will move mountains to simply help a client, and often draws upon her experiences in our industry.’

‘The team at Dillon Eustace is very strong, they have comprehensive industry experience and provide prompt and succinct direction, which is very useful given the level of change within the industry at the moment. A strength of Dillon Eustace is that it is slightly smaller than some of the bigger firms and this can assist with providing a personalised service.’

‘Grace O’Connor has deep industry knowledge which enables her to assist her clients by providing comprehensive and prompt guidance and industry updates.’

‘I have found the Dillon Eustace investment funds practice to be more solution oriented than other similar practices in Dublin. The partners and associates with whom we work are always accessible, and they have comprehensive legal, regulatory and market knowledge. In general, Dillon Eustace are a pleasure to work with.’

‘The standout partners would be Brian Higgins and Aisling O’Malley.’

‘I find Dillon Eustace to be a very smart, commercial and efficient firm to work with. They provide very good service and at a commercially reasonable/competitive price.’

‘I would point out Cillian Bredin in particular as providing excellent advice and service.’

Key clients

Angelo, Gordon, LP

Aon Hewitt

AXA Investment Managers


BNY Mellon Asset Management

Algebris (UK) Limited

Legal & General Investment Management

Old Mutual


Odey Asset Management

Payden & Rygel


Swiss Capital Alternative Investments

Societe Generale

Lone Star


Polar Capital


Golden Tree Asset Management

Fiera Capital

Marshall Wace


DMS Investment Management Services (Europe) Limited

Tenax Capital Limited

Gamma Capital Management Ltd (UK and Iceland)

BlackRock Capital Investment Advisors  (US)

Credit Suisse

Danske Bank AG

Kayne Anderson

Pinnacle Capital Partners

Roundhill Capital

Roundshield Capital Partners

Twelve Capital AG

Trium Capital


BNP Paribas

Portfolio Advisors

Berkshire Partners

Ambienta SGR


Motilal Oswal Capital

DSP Investment Managers

Capital Four Asset Management

BNP Paribas London

Southeastern Asset Management Inc

Infinity Asset Management

Duff & Phelps


Ireland > Banking and finance Tier 2

Dillon Eustace has traditionally been strong in fund finance and non-performing loan transactions. Its 'knowledgeable and can-do' team is also experienced in real estate finance, and regularly advises Irish banks, non-bank lenders and borrowers on high-profile matters in the development finance space. Elsewhere, the group also advises on the financing of corporate transactions. Conor Keaveny is noted for his expertise in multijurisdictional structured finance work, while Keith Robinson and John-Hugh Colleran have been highly active in property finance matters.

Practice head(s):

Mark Thorne


‘John-Hugh Colleran and his team are always professional in their approach and readily available when required. We trust in their expertise and have often sought advice prior to structuring complex deals which they are always more than happy to give.’

‘Dillon Eustace have a reputation for providing good value and good service levels. The firm is particularly strong in the funds space so any lending work with a fund aspect is generally a good fit for them.’

‘Conor Keaveny is particularly strong on the technical side. John-Hugh Colleran has excellent soft skills and a reputation for developing good working relations with borrower counsel. Keith Robinson enjoys a strong following among the lender community, particularly in the real estate space.’

‘A likeable, knowledgeable and can-do team with good industry knowledge and great experience in advising on large corporate deals. They are easy to lift the phone to and know what points can be dropped and what are worth fighting for.’

‘John-Hugh Colleran and Conor Keaveny have the same affable manner, confidence in their legal knowledge, and awareness of transactional needs and realities. Both are super approachable and a pleasure to deal with. A great little banking team. They’ve also given us a bit of added extra support in terms of talks and education sessions meaning they are good value for money.’

‘They take a very commercial and pragmatic approach and encourage all parties to communicate to aid efficiencies.’

‘Keith Robinson is very competent and practical. Also, he is well regarded and respected by other firms who act for us.’

Key clients

Goldman Sachs

Fairfield Real Estate Finance

Allied Irish Banks, p.l.c.



Yew Grove REIT

Ulster Bank Ireland DAC

Deutsche Bank AG

Investec Bank


Centric Health


Ireland > Capital markets Tier 2

Dillon Eustace's strong DCM practice covers cross-border securitisation, structured finance, high-yield and corporate bond issuances and the establishment of medium-term note programmes. The team has experience acting for Irish and international issuers and financial institutions, and Conor Keaveny has a niche expertise in advising Russian banks. Other key contacts include Keith Robinson and John-Hugh Colleran, who are highly experienced in non-performing loan transactions, among other matters, and former managing partner Mark Thorne, who returned to the practice full time in August 2020.

Practice head(s):

Mark Thorne

Other key lawyers:

Key clients

Goldman Sachs

FBD Holdings

Deutsche Bank AG



Evoca SpA


Absolute Return Partners LLP

Cott Corporation

Kinnerton Credit Management

DFC Global Corporation


Helios Towers

FCS Funds and Capital Solutions

Celtic Investment Opportunities

Lasalle Investment Management

Ireland > Dispute resolution Tier 2

The team at Dillon Eustace handles litigation in the Commercial and High Courts, representing clients in defamation proceedings, contentious insolvencies, and enforcement of loans. The practice is particularly active in acting for financial institutions and insurers. John Doyle now heads the department, with former practice head Kieran Cowhey now as a consultant. John O’Riordan 'has the ability to deal rationally with issues no matter what complexities', while Peter Bredin is another key name.

Practice head(s):

John Doyle

Other key lawyers:

John O’Riordan; Peter Bredin; Kierhan Cowhey


‘Efficient service and great knowledge of the debt recovery process.’

‘Extremely great legal resource for our team, efficient service, and always works to find efficient solution for problems.’

‘The team are personable, courteous, responsive and highly professional. The lead partner for us, John O’ Riordan made sure to really understand our business and our issues, his advice was measured, but at all times, he has felt like a core part of our own team.’

‘John O’Riordan has been exceptional, his gentle guidance, humour and evident expertise have made it easier for us to make difficult decisions in line with his advice. Feeling that he is on our side and a core part of our team has greatly helped. John and his colleague Kate Michalowska are easily accessible and very responsive. The quality of their work is excellent.’

‘Extremely responsive and thorough in their advices.’

‘Peter Bredin and Alan Quigley both have an extremely good eye for detail, are very responsive and are strategic and client focused in their advises’

‘The team was always attentive, responded quickly and seemed very much in charge of the case. ’

‘John O’Riordan was the partner who led and dealt with our case. John is a very calm individual who has the ability to deal rationally with issues no matter what complexities unfold as the litigation action progresses.’

Key clients

Sunday Business Post

BNY Mellon



RSA Insurance


National Asset Management Agency (NAMA)

FBD Insurance

Travelers Insurance

Aer Lingus

Motor Insurers’ Bureau of Ireland (MIBI)

Havbell DAC, Seaconview DAC, Tanager DAC

Financial Services and Pensions Ombudsman

Irish Daily Mail / Irish Mail on Sunday

State Claims Agency

Liberty Insurance

Marsh Limited

Grant Thornton

Pepper Finance Corporation Ireland DAC


American Airlines

Ireland > Insolvency and corporate restructuring Tier 2

Offering clients 'the combination of good partner access with the strength and depth to handle the big jobs', Dillon Eustace handles insolvency matters for major US funds, leading insolvency practitioners, and domestic Irish financial institutions. Practice head Jamie Ensor has a varied practice and is 'commercially savvy'.

Practice head(s):

Jamie Ensor


‘For its size, the Dillon Eustace insolvency team seems to consistently punch above its weight when it comes to the clients they have and the profile of cases they are involved in. We see that they are not just one of the go-to firms for us but also for a number of our instructing NPL/charge-holder clients. The combination of good partner access with the strength and depth to handle the big jobs is particularly strong. They are strong in other areas like banking, funds, tax, commercial litigation, commercial property etc, which can be brought into a big job if needed.’

‘What makes them stand out would be the combination of good partner access and the expertise down through the rest of the team to handle the big and complex jobs. Jamie Ensor is very experienced and commercially savvy.’

Key clients


Cyber Group Studios

Credit Suisse

BNY Mellon

Deutsche Bank Trust Company America






Grant Thornton

RSM Ireland


Crowe Ireland

Baker Tilly


Pepper Asset Servicing

Smith & Williamson

McStay Luby


Aidan Garcia Diaz

John Healy (Kirby Healy)

Myles Kirby (Kirby Healy)

Martin Ferris and Patrick McCoy

Tanager Limited

Seaconview Limited

Havbell Limited

Havbell No. 2 Limited

Frontier Capital

AIG (New York)

Ireland > Insurance Tier 2

Dillon Eustace has a strong defence insurance practice, with significant experience in acting for Irish and international insurers in high-value professional negligence claims and coverage disputes. John Doyle took over from consultant Kieran Cowhey as head of the contentious side of the practice in 2020; other notable team members include John O’Riordan and Peter Bredin, who have expertise in professional indemnity and coverage disputes, and Elaine Healy, who focuses on employers' liability and medical negligence claims. Keith Waine heads the regulatory practice, where consultant Andrew Bates is also a key contact.

Practice head(s):

John Doyle; Keith Waine

Other key lawyers:

Peter Bredin; John O’Riordan; Elaine Healy; Andrew Bates; Rachel Turner


‘Individual solicitors have the ability and inclination to refer certain issues internally for a second opinion or specialist option where required. This is a great comfort when getting an opinion to know it is fully reasoned out by the best and most experienced in the practice.’

‘In my opinion, what makes the individuals in Dillon Eustace stand out is their willingness to go over and above what I would consider their normal requirement in their job. This is particularly beneficial with complicated liability cases or in dealing with difficult or demanding clients.’

Key clients

Motor Insurance Bureau of Ireland  (MIBI)


AXA Insurance


Allianz SE

FBD Insurance





Liberty Insurance

Irish Public Bodies (IPB)

Bupa Global DAC

Ireland > Media and entertainment Tier 2

'Intimately familiar with the particular demands of the news media sector', Dillon Eustace's media and entertainment practice acts for a number of the most prominent newspapers in Ireland, defending against allegations of defamation, breaches of privacy and contempt of court. Practice head John Doyle also provides pre-publication and day-to-day advice to newspapers, and is praised for his 'excellent tactical sense'. David Kavanagh is active in defamation matters.

Practice head(s):

John Doyle

Other key lawyers:


‘The team is very good with clients. In stressful circumstances, they remain calm and offer clear advice.

‘John Doyle has excellent tactical sense. He knows what will work, and how to bring about a sensible commercial solution. David Kavanagh is personable, responsive and calm. He has a very good knowledge of the field, and brings practical good sense to bear on difficult problems.’

‘The Dillon Eustace team with whom we engage is intimately familiar with the particular demands of the news media sector and gives immediate, accurate and practical advice tailored to the peculiarities of the issue at hand. The firm has a wealth of experience in this field acquired over decades of acting for national media clients.’

‘David Kavanagh stands out because of his enthusiasm for the work involved, his knowledge of the law and understanding of the issues. He is hard-working, diligent and incisive. His clear-sighted approach to finding effective and practical solutions reduces costs and unnecessary demands on resources.’

Key clients

Irish Times

Post Publications Limited (The Sunday Business Post)

Reach plc

Ireland > Real estate Tier 2

Dillon Eustace advises both the purchasers and vendors on real estate transactions, and is particularly active in the private rental sector. Additionally, the practice on real estate financing and also has a specialism in assisting with the creation of real estate vehicles, such as QIAIFs and ICAVs, for the purposes of real estate acquisitions. Kelly O’Hara leads the team, while Martin Colman leads on financings. Senior associate Brendan Cunnane is also noted.

Practice head(s):

Kelly O’Hara

Other key lawyers:

Martin Colman; Louise Wright; Fiona O’Neill; Brendan Cunnane


‘The key differentiator is engagement that is proactive and client oriented. Subject matter knowledge is second to none, and this together with peer recognition and reputation for quality is a business enabler. Dillon Eustace take care to gather background information and context, enabling the best possible understanding of the client interests. ’

‘What makes Dillon Eustace stand out is quality communications. That means sharing knowledge and assisting client understanding where needed. Kelly O’Hara is a professional with proven knowledge and experience, and her willingness to share her expertise provides the client with the confidence needed for the decision making process. Kelly is supported by a solid team of associates. Working with Senior Associate Brendan Cunnane, & Solicitor Julia Drennan has been a very positive experience, the work gets done and the team keeps an eye out for anything that could derail a project. ’

Key clients

SW3 Capital/Tristan Capital Partners

Round Hill Capital

Greenoak Europe Secured Lending

Aviva Life & Pensions Ireland DAC

Heitman LLC

Fine Grain Property (Ireland) Limited

NAMANo Fairfield Real Estate Finance Limited

Lone Star

Garlin Investment ICAV

Corum Origin SCPI

Abarta Investments ICAV

Centric Health


Ulster Bank

House Building Finance Ireland


FBD Insurance plc

RoundShield Partners LLP

Homestore & More

Ireland > Commercial, corporate and M&A Tier 3

Dillon Eustace's 'pragmatic and diligent' team has notable expertise in corporate transactions in the financial services and healthcare sectors, as well as in advising private equity funds, drawing on the firm's strong funds practice. Adrian Benson and 'excellent' practice head Lorcan Tiernan have extensive experience of cross-border M&A, investments, corporate restructurings and joint ventures. Senior associate Catherine Hicks focuses on the healthcare side of the practice.

Practice head(s):

Lorcan Tiernan

Other key lawyers:


‘A very pragmatic and diligent team.’

‘Lorcan Tiernan is an excellent lawyer. As well as being responsive and practical, he is creative and a problem-solver. He wants to get the deal done. I would highly recommend him.’

‘Consistent points of contact enabling the development of a good working relationship. Diverse and specialised teams capable of meeting our needs depending on the nature of our query. Easily contactable and promptly respond to queries. The team have worked with us for a long time and have historic knowledge, which is valuable particularly where there may be a change in staff in our office.’

‘Catherine Hicks has an excellent working knowledge of her field and attention to detail. She has a good appreciation of the client relationship.’

‘Dillon Eustace are extremely responsive and commercial in all their dealings. They are able to innovate on the complex matters and execute efficiently on the routine.’

‘Responsiveness, innovation, resilience, focus, loyalty.’

Key clients

Perrigo Company plc

Key Capital

Centric Health


FBD Holdings plc

Partners Group

Maiden Holdings Limited

Merrion Stockbrokers

Nordzucker AG/Nordic Sugar

European Investment Fund

Kuehne & Nagel

Travel Department

Verisk Analytics


Open Text Corporation

Zhongze Group

Causeway Capital

The firm: Dillon Eustace was established in 1992 and is one of Ireland’s leading law firms focusing on financial services, banking and capital markets, corporate and M&A, litigation and dispute resolution, real estate, and taxation. Headquartered in Dublin the firm’s international practice has seen it establish offices in Tokyo, New York and the Cayman Islands. In tandem with international development the firm has expanded significantly, particularly in recent years, in the domestic Irish market.

Areas of practice: The firm advises across a wide range of practice areas and disciplines. It is a market leader in a number of its key chosen fields including financial services, banking and capital markets, financial and insurance litigation and regulated and international mergers and acquisitions. In recent years the firm has been involved in many of the most significant transactions forming part of Ireland’s deleveraging and distressed asset disposal processes. It has acted for buyers of in excess of €20bn worth of distressed Irish assets and in some of the most high-profile commercial transactions including the sale by the State of shares in Bank of Ireland and a number of high profile corporate inversion transactions.

Department Name Email Telephone
Asset management Donnacha O'Connor +353 1 673 1729
Asset management Brian Dillon +353 1 673 1713
Aviation/asset finance Conor Keaveny +353 1 673 1741
Banking Conor Keaveny +353 1 673 1741
Banking Keith Robinson +353 1 674 1004
Capital markets Mark Thorne +353 1 667 0022
Capital markets Conor Keaveny +353 1 673 1741
Cayman Islands Matt Mulry +1 345 949 0022
Cayman Islands Jonathan Law +1 345 949 0022
Commercial Real Estate Kelly O'Hara +353 1 673 1827
Commercial litigation and dispute resolution Kieran Cowhey +353 1 673 1783
Commercial litigation and dispute resolution Paul Breen +353 1 673 1784
Compliance and regulatory Keith Waine +353 1 673 1822
Corporate and M&A Lorcan Tiernan +353 1 673 1736
Corporate and M&A Adrian Benson +353 1 673 1705
Distressed asset acquisition and finance Conor Keaveny +353 1 673 1741
Distressed asset acquisition and finance Mark Thorne +353 1 667 0022
Employment John Doyle +353 1 673 1786
Financial services Andrew Bates +353 1 673 1704
Financial services Brian Higgins +353 1 673 1891
Hedge funds and structured investment funds Donnacha O'Connor +353 1 673 1729
Hedge funds and structured investment funds Etain de Valera +353 1 673 1739
Insolvency and corporate recovery Jamie Ensor +353 1 673 1722
Insurance litigation Kieran Cowhey +353 1 673 1783
Insurance litigation Paul Breen +353 1 673 1784
Insurance regulatory Andrew Bates +353 1 673 1704
Inward investment Mark Thorne +353 1 667 0022
Inward investment Lorcan Tiernan +353 1 673 1736
Listings Tara O'Callaghan +353 1 673 1831
Listings Fionnán Gannon +353 1 673 1867
Maritime and aviation litigation Kieran Cowhey +353 1 673 1783
Maritime and aviation litigation David Kavanagh +353 1 673 1788
Media and defamation John Doyle +353 1 673 1786
Media and defamation David Kavanagh +353 1 673 1788
New York David Walsh + 1 212 792 4168
Pharma and healthcare Elaine Healy +353 1 673 1797
Private equity/venture capital Adrian Benson +353 1 673 1705
Private equity/venture capital David Lawless +353 1 673 1765
Real estate Kelly O'Hara +353 1 673 1827
Real estate Louise Wright +353 1 673 1817
Regulatory investigations Andrew Bates +353 1 673 1704
Regulatory investigations John O'Riordan +353 1 673 1792
Securitisation and structured finance Conor Keaveny +353 1 673 1741
Securitisation and structured finance David Lawless +353 1 673 1765
Taxation David Lawless +353 1 673 1765
Taxation Sean Murray +353 1 673 1764
Photo Name Position Profile
Mr Andrew Bates  photo Mr Andrew Bates Partner and Head of Financial Services
Mr Adrian Benson  photo Mr Adrian Benson Partner, Corporate and M&A Department
Mr Cillian Bredin  photo Mr Cillian Bredin Partner, Asset Management and Investment Funds
Mr Peter Bredin  photo Mr Peter Bredin Partner, Litigation and Dispute Resolution
Mr John-Hugh Colleran  photo Mr John-Hugh Colleran Partner, Banking and Capital Markets
Mr Martin Colman  photo Mr Martin Colman Partner, Real Estate
Mr Kieran Cowhey  photo Mr Kieran Cowhey Partner, Head of Litigation and Dispute Resolution
Mr Brian Dillon  photo Mr Brian Dillon Partner
Mr John Doyle  photo Mr John Doyle Partner. Specialist areas: Employment / Labour law. Commercial Litigation, Arbitration and Mediation.
Mr Jamie Ensor  photo Mr Jamie Ensor Partner. Acts for insolvency practitioners, companies, creditors, shareholders and company directors in…
Mr Paul Eustace  photo Mr Paul Eustace Partner, Real Estate
Mr Brian Higgins  photo Mr Brian Higgins Partner
Mr David Kavanagh  photo Mr David Kavanagh Partner, Litigation and Dispute Resolution
Mr Conor Keaveny  photo Mr Conor Keaveny Conor is a Partner in Dillon Eustace’s Banking & Capital Markets group.…
Mr Brian Kelliher  photo Mr Brian Kelliher Brian is a partner in Dillon Eustace where he specialises in Asset…
Ms Grace O'Connor photo Ms Grace O'Connor Partner, Asset Management and Investment Funds
Mr Donnacha O'Connor photo Mr Donnacha O'Connor Partner, Head of Asset Management and Investment Funds
Mrs Kelly O'Hara photo Mrs Kelly O'Hara Partner, Head of Real Estate
Mr John O'Riordan photo Mr John O'Riordan Partner, Litigation and Dispute Resolution
Ms Derbhil O'Riordan photo Ms Derbhil O'Riordan Partner working in Financial Services, Asset Management and Investment Funds and Derivatives
Mr Keith Robinson  photo Mr Keith Robinson Partner
Mr Lorcan Tiernan  photo Mr Lorcan Tiernan Partner, Head of Corporate and M&A Department.
Mr Keith Waine  photo Mr Keith Waine Partner, Head of Department
Mrs Etain de Valera  photo Mrs Etain de Valera Partner, Asset Management and Investment Funds
Number of lawyers : 90+
Main Contact Dublin : Donnacha O'Connor (Managing Partner),
Corporate Contact : Lorcan Tiernan., Ph: +353 1 673 1736
Financial Services Contact : Andrew Bates,, Ph: +353 1 673 1704
Other offices : Cayman Islands
Other offices : New York
Other offices : Tokyo