Marval O’Farrell Mairal > Buenos Aires, Argentina > Firm Profile

Marval O’Farrell Mairal

Argentina > Banking and finance Tier 1

Marval O’Farrell Mairal’s large banking and finance practice draws on the experience of 42 dedicated lawyers, including 11 partners, to provide banks and corporates with a full service offering covering all aspects of banking and finance law. The firm stands out for its deep expertise in bank M&A matters and has carved out a unique market position in Central Bank-related litigation, where it handles numerous forex, banking regulation and money laundering cases. The firm is also known for its formidable capital markets practice, which supports local and international clients across a range of complex cross-border and domestic securitisations, bond issuances and IPOs, as well as project and structured finance mandates. Respected banking lawyer and firm chairman Santiago Carregal leads the team alongside veteran banking specialist Gabriel Matarasso, who is sought out for advice on complex regulatory, anti-money laundering and forex matters. Other key senior names include Roberto Silva Jr , one of Argentina’s most active capital markets lawyers; Cecilia Mairal, a trusted counsel on highly complex and sensitive non-transactional banking matters; experienced capital markets partner Juan Diehl Moreno; and financing specialist Hernán Slemenson. The team’s next tier is led by recently promoted partners Sergio Talamo, who handles syndicated and bilateral loans among other financings; and Francisco Abeal, who takes on a range of regulatory and transactional work but it best known for specialist expertise in forex matters. The firm’s high quality training and talent pool has seen a number of associates take up roles with international banks and law firms during last 24 months, but the practice still boasts a capable second line, with experienced senior associate Manuela Lava and Pablo Lapiduz the main contacts at associate level. Since publication, Silva has been appointed head of the National Securities Commission by the incoming Millei administration - effective as of Janauary 2024.

Practice head(s):

Santiago Carregal; Gabriel Matarasso


We’d highlight Sergio Talamo.

It is a very solid team with a great deal of experience. It compares very favourably with its competitors due to experience that the MOM team has built up.

Knowledge of market and practical advice regulatory contacts.

Key clients

Credit Suisse

Franklin Templeton

BNP Paribas

JPMorgan Chase Bank


TMF Trust

Banco de Servicios y Transacciones

ICBC Argentina

Banco Galicia


Banco Supervielle

Banco Comafi



Ángel Estrada

CNH Industrial Capital Argentina


Banco Voii

Work highlights

  • Advising MercadoLibre and Banco Patagonia on the issuance of multiple securitised assets and digital consumer loans granted to users and consumers.
  • Assisting Ángel Estrada y Compañía on the placement and issuance of bond notes involving multiple arrangers and placement agents.
  • Advised the consortium of banks acting as underwriters and placement agents for the issuance of dollar-denominated notes totalling $174m by Aeropuertos Argentina 2000.

Argentina > Bankruptcy and restructuring Tier 1

Creditors, shareholders, debtors and trustees turn to Marval O’Farrell Mairal’s large bankruptcy and restructuring practice for support on complex , cross-border restructurings and bankruptcies. The team has been involved in Argentina’s largest and highest-profile in and out-of-court restructurings and -through its New York office- is able to support clients in cases heard before New York courts. Best known for its creditor-side track record, the firm’s multi-service capabilities allow it to draw on the expertise of banking, finance and litigation experts to provide a comprehensive service in major restructurings. Vastly experienced counsel Martín Campbell is a stand-out practitioner with more than 35 years of insolvency experience. He leads a strong senior team that includes Julio César Rivera (disputes); Gonzalo Fontana  (judicial bankruptcy proceedings) and Roberto Silva Jr  (banking and restructuring). Since publication, Silva has been appointed head of the National Securities Commission by the incoming Millei administration - effective as of Janauary 2024.

Practice head(s):

Martín Campbell

Key clients

Avions de Transport Regional

RR Donnelley de Argentina

Finning Argentina and Finning Chile

Credit Suisse


Advising ING Bank, Surcursal Tokio, Sumitomo Mitsui Banking and MUFG Bank


Banco Comafi

Mercado Libre

Work highlights

  • Advising ING Bank (Tokyo branch), Sumitomo Mitsui Banking and MUFG Bank in high-value reorganisation proceedings involving Vicentín; the proceedings represent the largest insolvency case in Argentina.
  • Advising ING Bank on the restructuring proceedings of Molino Cañuelas.
  • Advising Project Twist and the respective lenders, agents and trustees on a complex, cross-border matter related to the reorganisation of Italian debtor Officine Maccaferri.

Argentina > Competition and antitrust Tier 1

Marval O’Farrell Mairal stands out for handling a high volume of merger filings and maintaining a top-quality antitrust investigation unit, which participates in the most demanding and complex investigations conducted by the Antitrust Commission. The team’s expertise is sought out by clients across Latin America, with the firm assisting companies in Argentina, Brazil, Chile, Bolivia, Peru and Uruguay on a range of competition, economic regulation and internal compliance matters. Practice head Miguel Del Pino is a widely respected competition law specialist with more than two decades' experience handling competition and antitrust matters. Partner Santiago del Rio also dedicates his practice to competition law and is another key senior contact. Experienced senior associate Gabriela Ariel Irizar (antitrust and litigation) and associate Ignacio Mora (competition law) provide additional support.

Practice head(s):

Miguel del Pino


Marval’s team is highly professional, sophisticated in its area of expertise and with a high commitment and monitoring of customer needs.

Santiago Del Rio and Franco Nigro are outstanding professionals in their area, with excellent market knowledge.

Key clients

Saudi Aramco

Thermo Fisher



Pernod Ricard



General Motors



Sumitomo Chemical

American Tower Corporation

Lone Star

Yara Corporation

Compagnie Gervais Danone

Delivery Hero

Siemens Healthineers


Helios Health (Fresenius)

Work highlights

  • Advising on a dominance claim by PPRO against Visa and Mastercard in the digital payment industry.
  • Advising Discovery/Warner on a merger control notification.
  • Advising on the negotiation of remedies in the Avon Natura merger control proceedings.

Argentina > Consumer law Tier 1

Marval O’Farrell Mairal stands out for the depth of its expertise in complex consumer claims and class actions, assisting clients before various consumer protections agencies and designing legal strategies to defend against allegations of infringements to consumer protection regimes. The firm is also a go-to option on consumer liability matters across a range of sectors, most notably in the tobacco industry, where it maintains the largest tobacco product liability practice in Argentina. Other notable areas of work include outlining compliant recall and retrofit strategies, providing advice on labelling requirements and assistance with adapting products, services and sales plans. The practice is led by the experienced triumvirate of Leandro Castelli (product liability claims and complex litigation); Fernando Montes De Oca (automotive industry litigation) and Facundo Viel Temperley  (procedural law; class actions; and civil, commercial, consumer and product liability cases). A cohort of experienced senior associates, including Alejo Gascón, Lorena Cozzarin and Gabriela Dibble, lead the second line.

Practice head(s):

Leandro Castelli; Fernando Montes de Oca; Facundo Viel Temperley


A great team, with long-time experience handling sophisticated claims.

The entire team is competent, creative and a pleasure to work with. They are sharp, think outside the box and are dependable. Facundo Viel Temperley, Leandro Castelli, Lorena Cozzarin, Maria Agustina Canullo and Alejo Martin Gascon.

They are a very collaborative team, highly capable and efficient, and with lot of experience and knowledge about current procedures and regulations.

Key clients

Massalín Particulares

Peugeot Citroën Argentina

Philip Morris International

The Walt Disney Company


Banco Santander Rio

Diageo Argentina

Magneti Marelli

Círculo de Inversores

BNP Paribas

Banco Itaú


Soy Henry

Work highlights

  • Representing in mediation, administrative and judicial proceedings initiated by users of the website who made different hotel reservations through it.
  • Providing strategic advice and complete regulatory compliance assistance to The Walt Disney Company Argentina on the launch and current operation of Disney+ and Star+ platforms.
  • Represet Credit Suisse, United Utilities, Loma Negra, Banco Itaú, Zimmer Biomet, Peugeot–Citroën, Banco Santander Río, Disney, Netflix, BNP Paribas, Hertz, in different class actions brought by consumers seeking compensatory and punitive damages.

Argentina > Corporate and M&A Tier 1

Marval O’Farrell Mairal’s marquee corporate and M&A practice is a consistent presence in Argentina’s largest and most sophisticated M&A deals, advising international and local corporates and private equity firms on a wide-range of cross-border and domestic transactions in multiple sectors. In recent years the firm has become increasingly prominent in pan-regional deals, coordinating transactions across Latin America, mirroring work historically led by US firms in the region. The size and range of expertise within the practice is unmatched and sees the firm called on to provide advice on day-to-day business matters, corporate structures and restructurings, with close integration with the highly-rated tax department a further differentiator. Highly experienced and respected corporate lawyers Pablo Artagaveytia and Pablo Viñals Blake co-lead a team of exceptional depth and experience. Firm chairman and formidable M&A lawyer Santiago Carregal; veteran transactional specialist Pablo Garcia Morillo; and private equity and venture capital expert Diego Krischcautzky are key figures in the group. The department’s roster of senior lawyers also includes Diego Chighizola, who has a strong practice in agribusiness and real estate transactions; and Barbara V Ramperti, an M&A lawyer with particular expertise in the acquisition of new business lines, joint ventures and reorganisations. A younger generation of partners – including  María Macarena García Mirri and María Laura Bolatti Cristofaro – provide further high level support, with the practice also able to call on the vast experience of the iconic Héctor Mairal for strategic advice and counsel. María Virginia Canzonieri, who focuses on commercial and corporate law matters and M&A transactions, is a key figure at associate level.

Practice head(s):

Pablo Artagaveytia

Pablo Viñals Blake


The difference with Marval is that the team is highly qualified, dynamic and has a structure that allows any project to be pushed forward. In turn, it has the widest range of specialties. The partners are very committed to their customers.

Barbara Rampert is creative, efficient, responsive and knowledgeable. Ricardo Ostrower stands out for his analytical thinking, efficiency, knowledge and strategic insight.

Diego Krischcautzky is experienced, pragmatic and open to debate.

Compared to other firms, the speed and quality of the work provided by Marval is at another level.

Excellent professionals who are attentive to client needs.

Pablo Viñals Blake is indeed an outstanding human being. On one hand he is highly sophisticated and sharp, on the other, he has a great sense of humor combined with an extraordinary ability to negotiate.’

Diego Krischkautzky and Macarena Garcia Mirri formed a solid team, achieving effective advice that contemplated various edges and interests that covered not only Corporate issues but also complex legal situations.

Key clients

Merck Sharp & Dohme Argentina

Edmond M Safra





Diagnósticos de Ámerica

Stellantis Group

Lamb Weston International


Work highlights

  • Assisting Merck Sharp & Dohme Argentina with the reorganisation of its business with particular attention on the local structure of transactions made in the transfer of shareholding and a potential demerger.
  • Advised Danone on the search and creation of a strategic alliance for its water and flavoured water business in Argentina, which took two years and led to the creation of a joint venture between Danone and CCU.
  • Advising sports giant Nike on the sale and restructuring of its business in Argentina and Uruguay.

Argentina > Dispute resolution Tier 1

Consistently called on to handle large, complex, sensitive disputes, Marval O’Farrell Mairal advises domestic and international clients on high-value cases across all types of litigation and arbitration. The practice litigates before all levels of the courts in Argentina and regularly serves as counsel in ad hoc and institutional arbitrations in commercial, investor-state and bilateral treaty matters. The team also undertakes constitutional and administrative matters, as well as bankruptcy litigation. Practice head Ricardo Ostrower handles complex and politically sensitive litigation and arbitrations, and leads a formidable roster of senior talent that includes: Julio César Rivera (h), whose practice spans commercial litigation, international and domestic commercial arbitration, insolvency and constitutional law; Santiago Soria, an experienced energy and natural resources disputes lawyer; family law and inheritance disputes specialist Rodrigo García; and Elias Bestani, best known for his expertise in insurance, reinsurance, maritime and aviation disputes. Consumer law specialist Facundo Viel Temperley, who has expertise in consumer and product liability disputes; and arbitration and litigation practitioner Fernando Alemany, who was raised to the partnership in August 2022, are noted too. The practice can also call on the vast experience of honorary partner and litigation veteran Julio César Rivera. Since publication, senior associate Martín Vainstein has been raised to the partnership - effective as of December 2023.

Practice head(s):

Ricardo Ostrower


In disputes, the outstanding attorneys I have worked with recently are Ricardo Ostrower, Julio Rivera Jr., Santiago Soria, Rodrigo Fermin García and Alejandro Alemany.

Marval is always available, the responses are quick, we do not wait days or hours to get a return from them. They make us feel that they are there for us.

Professional excellence and vast experience in most areas of law stand out. Facundo Viel Temperley, Fernando Montes de Oca, Ricardo Ostrower and Martin Bensadon.

Marval’s dispute resolution team is highly specialized in high-stakes corporate litigation, including cross-border cases. The fact that this team is part of a full-service law firm means that complex matters from different business areas (i.e. tax, environmental and M&A) are handled in an agile and thorough manner.

Ricardo Ostrower has extensive experience in dispute resolution and is always available to offer insights and perspectives to deal with new situations that arise before and/or during litigation.

Santiago Soria is a hands-on partner who knows in depth the facts of the cases in which he acts, thefore expediting strategic discussions throughout the case.

Absolute experts in their field, extremely client focused. Knowledge, experience and gravitas within the Latin American legal environment second to none. Always makes you feel as if nothing is too much trouble and capable of resolution. The office is run in a really efficient and friendly way. Back office/support staff very professional, friendly and helpful. Measure of the practice that we always look forward to meeting with Gabriel and Facundo.

Gabriel Matarasso – oozes gravitas, knowledge and authority. There’s nothing he doesn’t understand about the legal and judicial system. Superb grasp of English and the British culture. Leads from the front and despite being a senior partner prepared to roll his sleeves up. Great strategist and always cognisant of the bigger picture. Brings a calmness to the room notwithstanding the challenge being addressed.

Key clients



Barclays Bank

Credit Suisse



Pan American Energy




Avions de Transport Regional

INC (Carrefour Group)

Work highlights

  • Advising Credit Suisse on its potential liability for negligence in relation to the Madoff-fraud; the matter is significant as it relates to the potential liability of a financial entity for the wrongdoing of a third party.
  • Representing Avions de Transport Regional in arbitration proceedings in connection with the repossession of two aircraft sold to Avian Líneas Aéreas.
  • Representing INC in the debt restructuring proceedings of real estate developer Rivera Dessarrollos.

Energy and natural resources > Mining Tier 1

Marval O’Farrell Mairal advises on all aspects of mining projects and mining operations, with transactional work a strong area of expertise. The team is also known for the quality of its offering in the areas of mining rights, project financing, environmental law, royalties, litigation and stakeholder management. Former practice head Luis Lucero has retired from the firm’s partnership, but continues to share his vast experience as of counsel. The team is now led by mining-focused Leonardo Rodríguez, who has more than two decades of dedicated industry experience. He is supported by a strong cohort of experienced associates, including Ignacio Alonso (mining-related litigation); Andrés Villarreal (mining M&A) and Agustina Dellacasa (mining M&A and project development). Associate María Mercedes Rudolph has left the firm.

Practice head(s):

Leonardo Rodríguez


The team works very well and is very united. Their feedback is concrete and practical and it is obvious that they know about the subject, not only in theory but also in practice, which makes their advice very valuable when making decisions.

Leonardo Rodríguez is excellent and always ready to give practical advice. When we needed him he was always available. The same can be said of Agustina Dellacasa, an excellent associate with great projection in the area.

The team at Marval, O’Farrell & Mairal can advise not only on energy and mining-related regulations, but also foreign investment laws, which is very useful for foreign clients who are seeking to invest in Argentina.

Leonardo Rodriguez is very committed to his clients. His legal service is impeccable and he gives his clients valuable market insight.

They work as a team and interact with lawyers from the different practice areas of the firm without any problem. They share information and knowledge. In quality and price they are very good and competitive.

The clarity and speed in which they respond to queries stands out.

Key clients


AngloGold Ashanti

Newmont Corporation

Pan American Silver

Hochschild Mining Corporation


Sumitomo Corporation

Yamana Gold

Lilac Solutions

Nova Royalty Corp

Metalla Royalty & Streaming

Work highlights

  • Assisting Mara (a Yamana/Newmont Corporation/Glencore joint venture) with the development of its copper-gold-molybdenum Agua Rica Project in the Province of Catamarca.
  • Representing Glencore’s wholly owned subsidiary Pachón before a federal court in Argentina in its high-profile dispute with Minera Los Pelambres regarding a waste dump built by Minera Los Pelambres on Glencore’s property in Argentina.
  • Assisting Eternal Tsingshan with a joint venture with Eramet to develop the Centenario-Ratones Project.

Argentina > Environment Tier 1

Marval O’Farrell Mairal handles the complete range of environmental work, from regulatory matters and litigation to due diligence and other environmental aspects of M&A transactions. Environmental issues affecting manufacturing, infrastructure, oil-and-gas, and energy companies are a particular area of focus. On the litigation front, the firm handles a large portfolio of civil and criminal claims pending before the Argentine Supreme Court, as well as local and federal courts. The compact team is led by Francisco MacÍas, who has extensive environmental claims' experience (and also runs a busy oil-and-gas practice). Senior Gabriel Fortuna, who handles environment matters relating to the mining, food, energy, manufacturing and oil-and-gas sectors; and the experienced Jimena Montoya, a specialist in environmental regulatory matters, audits and due diligence, are teh key contacts at associate level.

Practice head(s):

Francisco Macías


The team stands out for delving into the detail and understanding the problem from a 360 degree perspective.

The team stands out for its clarity and explaining complex arguments simply.

They have a lot of experience. Very professional and good at evaluating the scenarios and agreeing the best route forward.

Key clients

Volkswagen Argentina

Grupo PSA



Danone Argentina



Compañía General de Combustibles

Compañía Mega




Summit Agro Argentina


Work highlights

  • Advising Volkswagen in connection with the environmental proceedings related to the so called ‘diesel gate’ scandal.
  • Advising Petro AP on an environmental claim brought by the Province of Jujuy in connection with its oil-and-gas operations at Calilegua National Park.
  • Assisting Compañía General de Combustibles with four environmental class actions filed by non-profit organisation ASSUPA (and other individuals), seeking remediation in relation to alleged damage in the North-Western, Austral, Neuquina and the San Jorge Gulf basins.

Argentina > Insurance Tier 1

Marval O’Farrell Mairal handles the complete range of insurance and reinsurance work, including major disputes and administrative claims, regulatory advice, reinsurance claims, M&A, marine and aviation insurance, and product liability. Insurers also turn to the specialist 12-strong team for advice on day-to-day corporate matters and transactions. The team’s expertise defending insurance companies in collective and class actions and other types of mass litigation is also widely recognised in the market. Insurance expert and market reference Pablo Cereijido leads the practice and has more than 25 years' experience in the sector. The well-reviewed Elias Bestani, a specialist in insurance, reinsurance and maritime and aviation law, is another stand out senior name; additionally, the team can call on the vast experience of former practice head and of-counsel Albert Cappagli, a 40-year insurance-sector veteran. A capable second line is led by disputes, shipping and admiralty specialist María Victoria Rodríguez Mamberti; and Matias Acrogliano, who covers claims and regulatory work.

Practice head(s):

Pablo Cereijido


Marval’s insurance and reinsurance team is excellent. Lawyers who stand out from their competitors for depth of analysis, business knowledge and flexibility.

Outstanding professionalism  and responsiveness.

The team is unique in that it fully understands and integrates with the London insurance and reinsurance market. This means that, in addition to providing swift, accurate advice on Argentinean law, it is able to apply that to the commercial realities of the London market.

Elias Bestani stands for his advice to London reinsurers and his ability to strategise to the benefit of his clients. He is approachable, always available, and enthusiastic about achieving the best result for clients.

Marval O’Farrell Mairal’s service has been top-notch. They have consistently been strong technically, easy to work with, provided high quality work product and clear, relevant and responsive advice.

Key clients

XL Catlin


The Zurich Group


Marsh – Guy Carpenter & Company

Assurant Argentina Compañía de Seguros


IRB Brasil Re



Hanseatica Compañía de Seguros

QBE Europe – QBE Management Ireland

Andina ART

BNP Paribas Cardif

La Meridional Compañía de Seguros

Work highlights

  • Advising reinsurer XL Catlin on a high-profile insurance and reinsurance claim concerning the collision of two public helicopters during the filming of a French TV show that caused the death of all 10 Argentine and foreign citizens onboard and the total loss of both helicopters.
  • Advising Zurich Argentina Compañía de Seguros on negotiating and executing a highly significant 10-year bancassurance distribution contract with HSBC Bank.
  • Representing international reinsurer Royal & Sun Alliance in a complex judicial coverage dispute brought against it by Sancor (insurer) and Punto Sur (Sancor’s local reinsurer).

Argentina > Intellectual property Tier 1

Marval O’Farrell Mairal is the "go-to" practice for all transactional, contentious and tax-related IP matters. Having started out as an IP boutique before growing into a dominant full service operator, the firm boasts a formidable practice of more than 40 dedicated IP lawyers who handle the gamut of IP work - ranging from local patent, trade mark and copyright litigation and enforcement, to handling IP prosecution and portfolio management for clients across Latin America and the Caribbean. The practice is also able to draw on expertise from other departments of the firm, most notably in the area of criminal law, and offers clients extensive expertise in patent applications and  trade mark prosecution too. The team’s enforcement unit, which deals with damages arising from counterfeiting activities, is another differentiator. The practice calls on a deep pool of senior talent that includes Iris Quadrio, who supports domestic and foreign clients across a range of IP matters; trade mark expert Sergio Ellmann; patent litigation and filing expert Martín Bensadon; and IP litigation and anti-counterfeiting veteran Gustavo Giay. A strong cohort of younger partners provides further bench strength and includes Ignacio Sánchez Echagüe (patents); IP litigator Martín Chajchir; Juan M López Mañan (trade marks and domain names); Cristian D Bittel (patent prosecution – particularly for pharma, biotech and agribusiness clients); and Diego Fernández (IP transactional matters and IT and privacy related advisory), along with Andrés O’Farrell (criminal litigation, enforcement and anti-counterfeiting) and Eugenio Hoss (patents). Manuela Adrogue, who covers IT, data protection, privacy and IP asset transactions, is the key contact at associate level.

Practice head(s):

Iris Quadrio; Sergio Ellmann; Martín Bensadon; Gustavo Giay


They always get the job done and are easy to work with.

Juan López Mañán is smart and diligent. A pleasure to work with.

The team is extremely strategic and responsive.

The team is very strong and capable. They have a thorough knowledge of the subject and know how to work in the Argentine IP ecosystem. Compared to other law firms, it is one of the most solid.

Key clients

Gilead Pharmasset

Millennium Pharmaceuticals

Eli Lilly and Company


Bayer AG


The Coca-Cola Company



Imagen Satelital

Work highlights

  • Successfully representing several pharmaceutical clients in the complex issue of obtaining preliminary injunctions for patents.
  • Supported Corteva in regional prosecution of its most important products, allowing the client to have consistency throughout the Latin America region while gaining efficiency and cost reductions in the management of its patent portfolio.
  • Assisting Monsanto–Bayer in a case against the Argentine PTO involving the rejection of a patent application related to one of its most important commercial products.

Argentina > International trade and customs Tier 1

Marval O’Farrell Mairal is at the forefront of international trade activity in Argentina and a "go-to" adviser on complex trade investigations, anti-dumping matters, import and export regulations, trade policy and foreign exchange controls. The team is also recognised for the depth of its expertise regarding customs valuations, rules of origin, tariff code classifications and associated litigation. The practice is co-led by Pablo Gayol, a reference on anti-dumping law, and Juan Pablo Rothschild, in turn an authority on customs law. The team’s deep roster of talent also includes deeply experienced partner Patricia López Aufranc (anti-dumping), and senior associate Juan Martin Sanz (customs). Former fellow senior Jazmine Daruich  moved in house in February 2023.

Practice head(s):

Pablo Gayol; Juan Pablo Rothschild


Marval is at the forefront of international trade activity in Argentina. The firm is consistently involved in big and important cases.

Pablo Gayol is very clever and has delivered excellent technical work. Always good ideas on building the strategy to win cases.

The depth of the Marval team makes them a point of support in critical aspects for the company. Its true “full service firm” status helps us to always find adequate support when addressing complex issues.

Juan Pablo Rothschild not only has in-depth regulatory knowledge, but also perfectly understands the needs of his clients, and is an invaluable partner for the evaluation of complex issues and the proposal of alternatives.

Excellent collaboration and availability. The ability to prepare reports in a timely manner in different languages based on requirements. Excellent willingness to respond and to provide further clarification online in zoom meetings or similar. Special mention for Pablo Gayol, Pablo Rostschild and Juan Pablo Lentino.

Key clients




Compañía Mega


Grupo Roca

Globenet Cabos Submarinos


Sales de Jujuy

Work highlights

  • Represented Roca Sanitarios Brasil and Roca Argentina in the antidumping sunset review of Brazilian Sanitary fittings.
  • Providing advice to Sales de Jujuy on the import of goods, exports collection, and foreign exchange regulations.
  • Providing advice to Topper Argentina on the export of goods, exports collection, and foreign exchange regulations, in a very complex regulatory framework.

Argentina > Labour and employment Tier 1

Marval O’Farrell Mairal specialises in complex, sensitive labour matters for international corporates and embassies, among others. The practice is well-known for its labour litigation work, representing clients before all levels of the courts, and has developed proprietary software that helps to predict the outcomes of labour lawsuits to assist clients in planning defences. The team is equally adept taking on union negotiations, immigration matters, foreign currency salary payments, the winding down of Argentine subsidiaries and advising on the labour aspects of M&A transactions. One of Argentina’s most experienced labour litigators, Javier Patrón, leads the team; he is flanked by well-connected employment specialist Enrique Stile, and Diego Kelly, whose areas of expertise include compensation and union issues. Both provide significant senior-level support. Other key names include international labour and M&A expert Rodrigo Sola Torino; labour litigation veteran José María Llano; and Guillermo Osorio, whose practice is focused on representing high net worth individuals in complex labour litigations. The practice recently strengthened its ranks with the hire of five associates, including Luciana Abadin and Mariela Raczekowski who arrived from Bruchou & Funes de Rioja in November 2022.

Practice head(s):

Javier Patrón


José Llano and Guillermo Osorio have demonstrated not only knowledge of the subject matter on which they work, but also a clear understanding of the client’s needs and objectives in order to do the job as efficiently as possible.

The litigation team is very capable and always well prepared.

I highlight Guillermo Osorio for his conduct of complex litigation.

Key clients


Delivery Hero




Sea Group

Louis Vuitton Moët Hennessy




Gate Gourmet


Aerolíneas Argentinas





United States of America


Work highlights

  • Assisting Shopee with closing its operations in Argentina, involving more than one hundred and fifty employees.
  • Advised on a workforce reduction following its acquisition of an Argentine personal finance company.
  • Provided advice to Danone on the labour aspects of the sale of a 50% stake in its Argentine water business to CCU.

Argentina > Life sciences and healthcare Tier 1

Marval O’Farrell Mairal combines its full-service capability with deep life sciences sector expertise to provide life sciences clients with highly specialised advice on M&A deals, regulation, compliance, contractual matters, IP and litigation. The firm is a regular presence on big-ticket M&A deals in the sector and is also noted for is track record supporting international life sciences companies entering the Argentine market. Team head Martín Mosteirin is a stand-out practitioner in the field and known for his ‘extensive experience’ of the industry. Senior associate Camila Leone rejoined the practice in March 2023 having completed an LLM in health law at Georgetown. Fellow associate Carolina Andrea Ramirez is also focused on the life sciences, particularly regulatory strategies and compliance.

Practice head(s):

Martín Javier Mosteirin


The team is great at communication and displays business acumen.  Capable of handling complex projects involving multiple jurisdictions.

Martin Mosteirin is very accessible and is always keen to help us discover new ways to handle difficult situations.

The team has several lawyers dedicated exclusively to complex and day-to-day regulatory issues, which sets it apart from the rest. The technical level of the team is really high.

Martín Mosteirin has extensive experience in an industry with many peculiarities, which make his practice a very attractive option for multinational clients. His expertise is what distinguishes him from the majority of other lawyers.

Work highlights

  • Represented Sanofi Aventis Group in a major world-wide spin-off restructuring of its consumer healthcare products portfolio (OTC medicines, medical devices, cosmetics and food supplements) to Opella Healthcare.
  • Representing Takeda Pharmaceutical Company on the spin-off of its gastroenterology portfolio in Latin America and the Caribbean.
  • Represented Aguas Danone de Argentina in the spin-off of its water-business unit.

Argentina > Public law Tier 1

One of the largest and most experienced public law-focused teams in Argentina, Marval O’Farrell Mairal is sought out by local and international clients for its deep expertise across a wide range of administrative and public law matters. The team handles public-private partnerships (PPP) and big ticket infrastructure projects, and has assisted a number of clients to navigate public procurement processes and secure or renew major government tenders and concessions. Sensitive regulatory negotiations, subsidies and supply deals are also areas of activity for the practice group, as are public law disputes work  – including contentious tariff annulments, and Central Bank-regulation and concession-contract disputes. The team is also active in investment disputes and international arbitration proceedings involving the state. Public ethics and the public law aspects of M&A are other areas of expertise. The formidable Héctor Mairal is one of the country’s foremost administrative law experts and co-leads the team with experienced administrative practitioner María Lorena Schiariti and Enrique Veramendi, a regulatory and administrative specialist who also undertakes constitutional and administrative litigation. The practice draws on a strong bench of supporting talent, including experienced dispute resolution partner Gonzalo Santamaria, and associates Milagros Ibarzábal (supply agreements) and Sofia Cimmarusti (public contracts and procurement).

Practice head(s):

Héctor Mairal; María Schiariti; Enrique Veramendi


An extraordinary team. Absolutely committed to the client, rigorous to the maximum and creative.

Enrique Veramendi, Hector Mairal, Ricardo Ostrower and Julio Cesar Rivera standout for their rigour and quality.

Marval are excellent lawyers. They know the law in theory and practice and they are very easy to work with.

I have worked with Enrique Veramendi and I cannot recommend him highly enough.

Key clients

Autopistas del Sol


DEME Group

Mitsubishi Electric Corporation

Grupo Concesionario del Oeste

GE Healthcare

Netflix Argentina



Abertis Infraestructuras


Pedidos Ya

Consorcio ART






General Motors

Mercedes Benz

Loma Negra – Ferrosur


Puma Argentina

Arcos Dorados

Compañía Mega

Mercado Libre

Work highlights

  • Representing and advising Autopistas del Sol and Grupo Concesionario del Oeste in relation to high-profile judicial and ICC arbitration proceedings related to the potential nullification of concession contracts.
  • Assisting Dredging International with challenging its initial disqualification from an Argentine Port Authority bidding process for acquisition of dredging services of the Paraná–Paraguay waterway.
  • Assisting Mercado Libre with challenging an Argentine Central Bank regulation requiring financial entities to record e-wallet deposits with the Central Bank.

Argentina > Tax Tier 1

Marval O’Farrell Mairal advises a high-profile portfolio of local and international clients across all aspects of tax law, including advisory work, tax planning and transactional matters, as well as litigation at all court levels. The stand-out practice is known for the depth of its expertise and experience handling sophisticated tax structuring, complex cross-border transactional work and high-stakes tax disputes. The team is also called on to provide support on regional tax matters involving other Latin American jurisdictions. The department, the largest in Argentina, boasts a deep bench of senior talent that is co-led by: María Inés Brandt, a go-to partner for high-level transactional and tax planning matters; corporate taxation specialist Walter Keiniger; international tax expert Gabriel Gotlib; and M&A tax veteran Fernando Vaquero. The senior team is also able to draw on the vast experience of veteran tax and customs of counsel, Horacio García Prieto. A talented second line of support is provided by senior associates Maria Paula Castelli (international tax); Sergio Vergara (tax litigation) and Luciana Virgile (corporate tax). Since publication, Vergara has been raised to the partnership - effective as of December 2023.

Practice head(s):

María Inés Brandt; Gabriel Gotlib; Walter Keiniger; Fernando Vaquero


María Ines Brandt has extensive tax knowledge and has become a partner for us when making decisions with a tax impact. She is an excellent professional.

The firm has experts in all areas of the business. They always provide thorough analysis.

Walter Keiniger has strong knowledge and is proactive with solutions.

A team with extensive experience and knowledge in tax matters, in a very complex jurisdiction given the continuous changes applied by the authorities.

They think “out of the box” to try to provide solutions to the questions that arise with the continuous increase in legal restrictions.

The team is made up of members with a lot of experience and solid knowledge in taxation. They balance analysis between the legal theoretical framework and concrete experience gained in administrative and judicial courts.

For a client the most important attribute of a tax practice is having confidence in the advice you are given. Tax advice is often hedged, which makes it a gamble for the client. The tax practice at Marval, and particularly the advice of Walter Keiniger, does not follow this pattern. The advice is clear and well-researched and therefore valuable.

Key clients

Mondelēz Argentina


Loma Negra

Work highlights

  • Advising Nike on the tax implications of a commercial restructuring of its business in Argentina.
  • Advising Loma Negra on an effort to obtain an injunction to prevent the Province of Misiones from implementing a regime requiring down-payments from taxpayers, contravening taxpayers’ rights.
  • Advising Mondelēz Argentina on negotiating and executing an asset sale agreement related to the Mantecol brand and other assets including various complex commercial agreements.

Argentina > TMT Tier 1

Marval O’Farrell Mairal provides clients with a ‘truly exceptional’ integrated TMT practice and is the go-to legal adviser on civil and contentious matters for Argentina’s big three telecoms operators, as well as telecoms infrastructure, subsea fibre optic cable and satellite providers. The group also has deep knowledge of all aspects of the television, software and online gaming sectors, and also handles blockchain, fintech and crypto-asset related matters. The ‘simply fantastic’ telecoms and broadcasting practitioner, Daniel Di Paola, co-leads the team alongside vastly experienced broadcast, internet, media and telecom partner, Javier Etcheverry Boneo; and IT and privacy expert, Gustavo Giay. Partner Diego Fernández contributes with extensive data protection, privacy and cybersecurity expertise.

Practice head(s):

Daniel Di Paola; Javier Etcheverry Boneo; Gustavo Giay


Marval takes a global perspective and has expert knowledge and communication skills.

Javier Etcheverry Boneo has vast practical experience in regulated market matters.

Daniel di Paola is simply fantastic — he’s knowledgeable, responsive, creative, and  very focused on his clients’ business needs.

Marval’s TMT legal team is truly exceptional in its field, and it is a real pleasure to have them represent us in any matter related to technology, media and telecommunications.

This team is comprised of highly trained and experienced attorneys who have in-depth knowledge of the laws and regulations that govern the field of technology and communication.

‘They are experts in crafting sophisticated contracts, protecting intellectual property rights, and resolving complex disputes.’

Key clients

América Móvil / Claro Argentina

Warner Bros Discovery


The Walt Disney Company


GlobeNet Cabos Submarinos


Empresa de Energía del Conosur


Clear Secure

Wikimedia Foundation





Menta Tickets

Work highlights

  • Advised WarnerBros Discovery on regulatory filings related to the acquisition of AT&T assets in Argentina.
  • Advising Claro Argentina, DirecTV and Telecentro in a judicial claim against a Presidential Decree declaring all information, communication and technology services as essential and strategic public utilities.
  • Advising GlobeNet Cabos Submarinos on day-to-day business and regulatory filings related to a corporate reorganisation that includes the incorporation of Brazilian media company Oi.

Argentina > Compliance Tier 2

Marval O’Farrell Mairal houses a full service compliance practice capable of handling complex matters such as anti-corruption investigations and associated litigation. The group handles day-to-day compliance work, training and monitoring, and demonstrates a strong track record of working together with foreign lawyers, forensic IT experts, forensic accountants and PR consultants on sensitive cross-border matters. However, the June 2023 departure of specialist senior associate Gonzalo Márquez Alonso, followed by the exit of compliance specialist practice head Gustavo Morales Oliver  to joing FTI Consulting some three months later, has left the group in a process of transition. Administrative law partner María Lorena Schiariti, who has long provided high-level senior support on compliance matters, is currently leading the team with key support from dedicated senior associate, María Agustina Testa (compliance, anti-corruption and investigations).

Practice head(s):

Gustavo Morales Oliver

Key clients


Amazon Web Services (AWS)

BNP Paribas




Newmont Corp







Lilac Solutions


Nishimura & Asahi

Atis Group

Work highlights

  • Advise Skanska on legal proceedings related to allegations of corruption in the construction of gas pipelines.
  • Advising various pharmaceuticals companies on a template agreement seeking to prevent compliance contingencies with third parties.
  • Advising Kodak on proposed transactions involving anti-corruption risk analysis.

Energy and natural resources > Electricity Tier 2

Marval O’Farrell Mairal ‘s power practice covers the entire electricity generation and supply chain, handling matters that range from public tenders for generation projects (including thermal, cogeneration, hydroelectric, nuclear, renewable energy projects) to international and local PPAs, as well as domestic and international power-related disputes. Leveraging the strength of its corporate and M&A practice, the team enjoys a steady flow of transactional work, but is also called on to provide specialist counsel on electricity sector regulation, with its renewable energy expertise particularly sought after. Deeply experienced energy sector lawyer Francisco MacÍas leads the team and is an authority on power transactions, contracts and regulatory matters. Regulatory and power sector-focused Gonzalo Santamaria provides additional partner-level support.

Practice head(s):

Francisco Macías

Key clients


General Electric

MMEX Resources

Scatec Solar


Canadian Solar

Engie – Tractebel Energía

Seaboard Energías Renovables y Alimentos

Loma Negra






Sealed Air

MWh Solar


Compañía General de Combustibles

Integra Capital

Arcos Dorados

Work highlights

  • Advising MMEX Resources in connection with the development of a green hydrogen project to be located in Tierra del Fuego.
  • Advised MWh Solar, which is the first self-generator to secure the fiscal benefits contained in Law No. 27,191, on regulatory and contractual matters regarding the project.
  • Advising General Electric on negotiations involving PPAs between YPF Luz and different off-takers.

Energy and natural resources > Oil and gas Tier 2

The strength and depth of Marval O’Farrell Mairal’s full service offering has made the firm a natural choice for oil-and-gas companies seeking transactional, contractual, regulatory and dispute resolution advice. The practice is particularly strong in the natural gas space, but is comfortable handling work across the entire hydrocarbons supply chain. Exploration and production matters as well as midstream and downstream work are all covered, including specific LNG-related engagements. Energy transition and decarbonisation are other active areas. Well-regarded oil-and-gas veteran Francisco MacÍas has more than 20 years of industry experience and leads the practice, with former Total legal director and of counsel Arturo Pera the other key senior figure on the roster. Former practice head Ricardo Beller has exited the team, but the promotion of finance and energy lawyer Agustina Ranieri to the partnership and the hire of regulatory, energy and litigation partner Soledad Riera has ensured that the practice continues to offer clients senior-level expertise and experience.

Practice head(s):

Francisco Macías


This firm has been supporting us for years and we have a long-term relationship of trust. They have demonstrated technical capacity and knowledge with their contacts in Argentina.

The technical quality of the work and specific knowledge of each matter gives clients complete confidence. They are a proactive and organised team, who respond quickly and efficiently and are concerned about anticipating problems that may arise on a day-to-day basis.

The work of Francisco Macías, Macarena García and Salvador Muttini is outstanding.

Arturo Pera has unmatched experience and track record in hydrocarbon exploration and development activities. His knowledge is vast.

Extensive knowledge of oil and gas regulations.

Key clients

Exxon Mobil / Exxon

Royal Dutch Shell / Raízen Argentina

Compañía Mega (joint venture between YPF, Petrobrás and Dow)

Corporación América / Compañía General de Combustibles / CGC Energía





Transportadora de Gas del Sur

Schlumberger Argentina

DLS Archer




Gasoducto Nor Andino

Gasoducto GasAndes

Litoral Gas


Searcher Seismic

TGS / Spectrum






High Luck Group

Pan American Energy

Air Drilling Associates


Work highlights

  • Advising Compañía Mega on highly sensitive matters arising from EPC contracts with Techint and an agreement with the client’s main gas supplier, YPF.
  • Advising Compañía General de Combustibles in connection with obtaining natural gas export permits to Chile.
  • Advising gas producers Compañía General de Combustibles, Pan American Energy and Tecpetrol on large claims against the government in connection with non-payments incurred under gas promotional programmes.

Argentina > Fintech Tier 2

Marval O’Farrell Mairal advises early-stage start-ups, established fintech firms and financial institutions on regulation, anti-money laundering, payments, online lending, blockchain cryptoassets, tokenisation projects and initial coin offerings. The practice is led by Juan Diehl Moreno who has over two decades' experience handling a wide range of transactional and financing matters, and extensive knowledge in e-payments, blockchain and digital banking. Other key names in the team include associates Ignacio Paz and Pedro Colaneri.

Practice head(s):

Juan Diehl Moreno


The team provides comprehensive analysis of all areas in depth. Commitment to the interests of the client. Far superior to other studies.

Commitment and deep analysis of the issues, as well as the search for viable alternatives when the classic traditional law does not offer them, make this practice stand out.

Marval is an excellent firm, with a great track record and expertise in matters of law and fintech business. Their deliverables are of excellent quality, exceeding expectations in each consultation that we have entrusted to them. We are happy to have their support and advice!

Juan Diehl is an outstanding professional, with keen analytical skills and a deep understanding of the fintech business. He is straightforward and clear in addressing complex and sensitive issues. The service he provides is of excellent quality and always within the expected time.

The team led by Juan Diehl is impeccable. They are very solid and knowledgeable not only regarding legal issues but the blockchain industry in general. The latter is not common know-how for lawyers working in law firms. They are very familiar with what happens in practice, with the regulator and with the players in the sector. I would like to highlight the excellent advice provided by Ignacio Paz.’

Key clients

Mercado Libre

Mercado Crédito

Tech Demeter (Agrotoken)

New Agro Coin


Work highlights

  • Advising Mercado Libre on its $4bn credit agreement with Citibank.
  • Advising Agrotoken on regulatory matters related to a cashback program in development with a gas station brand to allow users to fill their cars and be awarded with a cashback token.
  • Advising New Agro Coin on its project involving a tokenization platform for farm assets.

Argentina > Real estate Tier 2

Transactional work is a key focus area for Marval O’Farrell Mairal’s real estate practice, which leverages the firm’s extensive M&A resources to support clients on pure play real estate transactions as well as real estate operations within the broader context of M&A deals. The team also counsels on sale-and-leaseback, financing and construction matters, and has carved out niche expertise in agribusiness land transactions and rewilding projects. Experienced transactional and financing lawyer Hernán Slemenson leads the team alongside corporate and M&A partner Diego Chighizola, who has extensive real estate financing and development experience.

Practice head(s):

Hernán Slemenson; Diego Chighizola


The team showed technical solidity and responsiveness. Very informed about the latest developments in the sector.

In this team I have worked with partner Diego Chighizola and in the past also with his associate Josefina Griot. They have a great technical ability and knowledge.

Key clients

InterContinental Hotel Group

Edmond Safra

Guggenheim Nicklaus Partners


Tompkins Conservation and Rewilding Argentina

The Butler Conservation Fund and The Wyss Foundation

Lojas Renner

Pernod Ricard


Kimberly Clark

Work highlights

  • Advising Edmond Safra on commercial real estate projects in connection with the development and construction of AAA office buildings in downtown Buenos Aires.
  • Advising Tompkins Conservation and Rewilding Argentina on complex legal issues related to creating national and provincial parks in the largest privately-owned land holding for conservation purposes.
  • Advising a Fortune 500 company on the sale of a plant in the Province of Buenos Aires.

Founded in 1923, Marval O’Farrell Mairal is the largest law firm in Argentina. A market leader at both local and Latin American levels, the firm has been providing sophisticated, high quality advice to international and local clients for 90 years. The firm comprises over 300 lawyers and has wide experience of international business issues and the complexities of cross-border transactions.

Our unmatched strength allows us to react quickly and to simultaneously handle large, complex and time-consuming transactions without compromising on quality. All our teams are led directly by highly experienced partners and carefully tailored to meet the specific needs of our clients. We have a strong focus on high-end corporate and finance transactions and the largest, most active litigation and arbitration practice in Argentina.

Our leading intellectual property department provides a comprehensive service and has unrivalled experience; the firm was originally founded as an intellectual property office. We are also a market leader in a wide range of other key practice areas including tax, fintechlabor and employment, competition/antitrust, energy and natural resources, administrative and public law, insurance and reinsurance, telecommunications and broadcasting as well as real estate and construction.

We are the Argentine member of Lex Mundi, the world’s leading association of independent law firms, comprising more than 160 members. We also have an office in New York, providing invaluable support on US transactions. With a long history of advising multinational companies and international institutions, we have a unique understanding of the Argentine market and how to help our clients achieve their goals. Marval O’Farrell Mairal has a 90-year track record of being prepared to respond to any challenge, both in the country and in complex cross-border transactions.

Department Name Email Telephone
Banking and finance Santiago Carregal
Banking and finance Gabriel Matarasso
Bankruptcy and restructuring Martín Campbell
Competition and antitrust Miguel del Pino
Compliance/ White-collar crime Andrés O'Farrell
Consumer Law Leandro M. Castelli
Consumer Law Fernando M. Montes de Oca
Consumer Law Facundo Viel Temperley
Corporate and M&A Pablo Artagaveytia
Corporate and M&A Pablo Viñals Blake
Dispute resolution Ricardo A. Ostrower
Energy and natural resources: Electricity Gonzalo Santamaría
Energy and natural resources: Mining Luis Lucero
Energy and natural resources: Oil and Gas Francisco Macías
Environment Francisco Macías
Insurance Pablo Cereijido
Insurance Elías Bestani
Intellectual property Iris V. Quadrio
Intellectual property Martín Bensadon
Intellectual property Sergio M. Ellmann
Intellectual property Juan M. López Mañán
Intellectual property Ignacio Sánchez Echagüe
Intellectual property Cristian D. Bittel
Intellectual property Martín G. Chajchir
Intellectual property Diego Fernández
International trade and customs Pablo Gayol
International trade and customs Juan Pablo Rothschild
Labour and employment Javier E. Patrón
Public law Héctor Mairal
Public law M. Lorena Schiariti
Public law Enrique Veramendi
Real estate Hernán Slemenson
Real estate Diego A. Chighizola
Tax María Inés Brandt
Tax Gabriel Gotlib
Tax Walter Keiniger
Tax Fernando M. Vaquero
TMT Daniel Di Paola
TMT Gustavo P. Giay
TMT Javier Etcheverry Boneo
Fintech Juan M. Diehl Moreno
Life sciences and healthcare Martín J. Mosteirin
Photo Name Position Profile
Francisco Abeal photo Mr Francisco Abeal Partner
Pablo A. Artagaveytia photo Pablo A. Artagaveytia Pablo A. Artagaveytia has been a partner at Marval O’Farrell Mairal since…
Martín Bensadon photo Martín Bensadon Martín Bensadon joined Marval O’Farrell Mairal in 1991 and has been a partner of…
Elias F. Bestani photo Elias F. Bestani Elías F. Bestani specializes in shipping and maritime law, insurance and reinsurance…
Cristian D. Bittel photo Cristian D. Bittel Cristian Daniel Bittel joined Marval O’Farrell Mairal in 2004 and became a…
María Laura Bolatti Cristofaro photo María Laura Bolatti Cristofaro Partner since 2021, María Laura Bolatti Cristofaro focuses her practice on corporate…
María Inés Brandt photo María Inés Brandt María Inés Brandt is a partner of Marval O’Farrell Mairal Tax Department…
Guillermo Burman photo Guillermo Burman His area of specialization is corporate and finance law. He gives legal…
Martín Campbell photo Martín Campbell Martin Campbell joined Marval O’Farrell Mairal as partner in 2000. Since August 2015…
Santiago Carregal photo Santiago Carregal Santiago Carregal is the Head of the Banking and Finance Department and…
Leandro M. Castelli photo Leandro M. Castelli Leandro M. Castelli joined Marval O’Farrell Mairal in 1994 and became a partner in…
Pablo S. Cereijido photo Pablo S. Cereijido Pablo S. Cereijido joined Marval O’Farrell Mairal in 1993 and has been…
Martín G. Chajchir photo Martín G. Chajchir Martin Chajchir joined Marval O’Farrell Mairal in 2002 and became a partner in 2013.…
Diego A. Chighizola photo Diego A. Chighizola Diego Chighizola joined Marval O’Farrell Mairal in 2001, and became a partner…
Jazmine Daruich photo Jazmine Daruich Jazmine Daruich joined Marval O’Farrell Mairal in 2008 and is currently a…
Miguel Del Pino photo Miguel Del Pino His area of specialization is centered on competition and mergers and acquisitions.…
Daniel Di Paola photo Daniel Di Paola Daniel Francisco Di Paola joined Marval O’Farrell Mairal in 2000 and is…
Juan M. Diehl Moreno photo Juan M. Diehl Moreno He is the head of the FinTech Department and partner in the…
Sergio M. Ellmann photo Sergio M. Ellmann Sergio Ellmann joined Marval O’Farrell Mairal in 1983 and has been a partner since…
Javier Etcheverry Boneo photo Javier Etcheverry Boneo Javier Etcheverry Boneo is a partner at Marval O’Farrell Mairal since 1996,…
Diego Fernández photo Diego Fernández Diego is a partner in the IP, IT & privacy practice group.…
Gonzalo J. Fontana photo Gonzalo J. Fontana Gonzalo Fontana specializes in litigation and commercial and corporate law. Within this…
Gabriel A. Fortuna photo Gabriel A. Fortuna Gabriel Alejandro Fortuna joined Marval O’Farrell Mairal in 2005 and is currently…
María Macarena García Mirri photo María Macarena García Mirri She specializes in corporate and commercial law; M&A, joint ventures and corporate…
Pablo Garcia Morillo photo Pablo Garcia Morillo Pablo García Morillo specializes in business and corporate law and his professional…
Horacio García Prieto photo Horacio García Prieto He is an expert on tax and customs law and has advised…
Pablo Gayol photo Pablo Gayol His practice in the firm is centered in international trade, mergers and…
Gustavo P. Giay photo Gustavo P. Giay He specializes in Intellectual Property litigation. His practice has focused on trademark…
Gabriel Gotlib photo Gabriel Gotlib Gabriel Gotlib specializes in tax, corporate and financial law. He has broad…
Sebastián M. Iribarne photo Sebastián M. Iribarne Sebastián M. Iribarne specializes in banking, finance and corporate law. His practice…
Walter C. Keiniger photo Walter C. Keiniger His practice involves counseling local and foreign companies in the design, planning…
Diego S. Kelly photo Diego S. Kelly Diego S. Kelly specializes in advising multinational and local companies in labor…
Diego Krischcautzky photo Diego Krischcautzky His practice is focused on commercial, corporate and insurance law. He has…
José María Llano photo José María Llano His practice has focused on Labor and Social Security Law and he…
Patricia López Aufranc photo Patricia López Aufranc Her practice has focused on international financial and commercial transactions, mergers and…
Juan M. López Mañan photo Juan M. López Mañan Juan M. López Mañán specialises in trademarks and domain names and has…
Luis E. Lucero photo Luis E. Lucero He practices law in the fields of natural resources with a focus…
Francisco A Macias photo Francisco A Macias Francisco A. Macías specializes in oil & gas, power, public services, infrastructure,…
Cecilia M. Mairal photo Cecilia M. Mairal She has extensive experience and is highly active in advising banks in…
Héctor Mairal photo Héctor Mairal An expert in administrative and business law, he has been involved in…
Gabriel G. Matarasso photo Gabriel G. Matarasso His areas of specialization include corporate, commercial, finance and capital markets, both…
Fernando M. Montes de Oca photo Fernando M. Montes de Oca He is specialized in litigation and dispute resolution in the civil and…
Gustavo Morales Oliver photo Gustavo Morales Oliver Gustavo Morales Oliver leads the Compliance, Anti-Corruption & Investigations practice. He also…
Martín J. Mosteirin photo Martín J. Mosteirin He provides both contentious and non-contentious legal advice to leading global companies…
Andrés O'Farrell photo Andrés O'Farrell Andrés O’Farrell has become partner of Marval O’Farrell Mairal in 2021. He…
Luciano M. Ojea Quintana photo Luciano M. Ojea Quintana He specializes in banking, finance, and M&A. In the banking and finance…
Guillermo M. Osorio photo Guillermo M. Osorio He is part of the team that specializes in high profile, complex…
Ricardo A. Ostrower photo Ricardo A. Ostrower Ricardo A. Ostrower has been Head of the Litigation and Arbitration Department…
Javier E. Patrón photo Javier E. Patrón He leads the employment litigation sector and specializes in providing legal support…
Arturo Pera photo Arturo Pera Arturo Pera joined Marval O’Farrell Mairal in 2016 as Of Counsel in…
Iván A. Poli photo Iván A. Poli Iván Poli specialises in IP law and advises foreign and domestic clients…
Iris V. Quadrio photo Iris V. Quadrio Iris V. Quadrio specialises in IP law, with extensive experience advising domestic…
Barbara V. Ramperti photo Barbara V. Ramperti Bárbara Ramperti specializes in commercial and corporate law. She has advised clients…
Agustina Ranieri photo Agustina Ranieri Partner
Julio César Rivera (h) photo Julio César Rivera (h) As a partner of the Litigation & Arbitration department, he specializes in…
Leonardo G. Rodriguez photo Leonardo G. Rodriguez Leonardo G. Rodríguez is a mining specialist with more than 15 years’…
Juan Pablo Rothschild photo Juan Pablo Rothschild His area of expertise is Customs Law, Foreign Trade and Tax Law.…
Ignacio Sánchez Echagüe photo Ignacio Sánchez Echagüe He specializes in industrial property and more particularly in patent law, having…
Gonzalo Santamaría photo Gonzalo Santamaría Partner since 2021, Gonzalo’s areas of expertise are Administrative and Energy Law…
María Lorena Schiariti photo María Lorena Schiariti A specialist in Administrative Law, she has intervened in matters of high…
Roberto Silva Jr photo Roberto Silva Jr He specializes in corporate, commercial and banking law. Within his area of…
Hernán Slemenson photo Hernán Slemenson Hernan Slemenson has participated as legal advisor in a broad range of…
Rodrigo Sola Torino photo Rodrigo Sola Torino Rodrigo Solá Torino’s practice focuses on advising in labor & employment matters,…
Santiago Soria photo Santiago Soria Santiago Soria has vast experience in complex commercial litigation, including disputes among…
Enrique M. Stile photo Enrique M. Stile He specializes in labor and employment law. His practice in the firm…
Sergio Tálamo photo Sergio Tálamo Partner since 2021, Sergio specializes in capital markets and corporate finance. He…
Fernando M. Vaquero photo Fernando M. Vaquero Specialises in taxation issues related to M&A, financing, business restructuring, real estate…
Enrique Veramendi photo Enrique Veramendi He provides advice on public law, economic regulation and administrative contracts to…
Facundo Viel Temperley photo Facundo Viel Temperley A member of the Litigation Department, he specializes in procedural law and…
Pablo Viñals Blake photo Pablo Viñals Blake Pablo Viñals Blake leads the Private Equity, Venture Capital and Agribusiness Groups.…
Santiago del Rio photo Santiago del Rio Santiago del Rio joined Marval O’Farrell Mairal in 2006 and is a…
Partners : 67
Total lawyers : 236
Total staff : 596