About
Founded in 1923, Marval O’Farrell Mairal is the largest law firm in Argentina, comprising over 300 lawyers and advising on high-end corporate and finance matters as well as major litigation and arbitration work. The firm offers broad practice coverage including intellectual property, tax, fintech and energy, is the Argentine member of Lex Mundi and maintains an office in New York to support US transactions.
Practice areas
Office
Lawyers at this firm
Agustina Dellacasa
Associate · Mining
Agustina Ranieri
Her practice focuses on advising clients in a wide range of domestic and international transactions, with a strong track record in oil and gas. She has been involved in many transactions in regulatory, contractual, corporate, and financing aspects, as well as in complex international commercial arbitration. She has broad experience in hydrocarbons law, financing, public debt, capital market transactions, debt restructuring, mergers and acquisitions (M&A), and commercial contract matters. · Energy & Natural Resources
Alberto C. Cappagli
Alberto C. Cappagli has been a partner with Marval between 1991 and 2007 and specializes in maritime, aeronautic and insurance law. · Insurance & Reinsurance
Alejo Gascón
He is a product liability expert, with extensive experience in product regulatory advice and recalls. He also focuses on the development of scientific and technical arguments in litigation. · Product Liability
Andrea Zaniratto
Andrea Ivana Zaniratto joined Marval in 2021 and is currently a Senior Attorney in the Litigation Department. She works in the area of Insurance and Reinsurance Law. Her practice includes advising and representing insurance and reinsurance companies, brokers, and companies from different sectors in pre-judicial and judicial disputes. She has experience in class actions, large claims, and international disputes. She has also participated in contractual and regulatory matters. · Insurance & Reinsurance
Andrés O’Farrell
Andrés O'Farrell has become partner of Marval O'Farrell Mairal in 2021. He specializes in criminal law and litigation and has extensive experience representing both local and international clients in matters involving protection of intangible assets and trade secrets, allegations fraud and breach of fiduciary duties, tax evasion and customs violations, money laundering and financial crimes, and environmental crimes. Andrés also advises clients in connection with internal investigations and audits, providing legal support in collecting and preserving relevant evidence, conducting admission-seeking interviews and defining disclosure of findings to relevant government authorities. · White Collar & Corporate Crime
Arturo Pera
Arturo Pera joined Marval O'Farrell Mairal in 2016 as Of Counsel in the Oil & Gas Group. · Oil & Gas
Barbara Ramperti
Bárbara Ramperti specializes in commercial and corporate law. She has advised clients in several M&A transactions, joint ventures, reorganizations and acquisitions of new business lines. She advises national and international clients in the negotiation process of agreements for the acquisition of shares and assets within different industries. Her professional practice is focused on providing advice to local companies and their foreign shareholders in corporate matters and contractual issues. · Corporate / M&A
Camila Leone
Associate · Life Sciences
Carolina Andrea Ramírez
Carolina joined Marval in 2019 and is currently an associate at the Life Sciences & Healthcare department. Her areas of expertise are the bio-pharmaceutical, healthcare, health-tech, medical devices, SaMD, chemical precursors, cosmetics, toiletries and perfumes, households cleaning products, food products and dietary supplements, among other industries. She provides both contentious and non-contentious legal advice to leading global companies on regulatory strategies and compliance matters ranging from the client’s day-to-day business to complex cross-border transactions, start-ups, joint ventures, M&As, spin-offs, product liability and recalls, contracts, compliance training, monitoring, audits and investigations, (trial and pre-trial) administrative proceedings and litigation, and civil and commercial advice in general. · Life Sciences & Healthcare
Cecilia M. Mairal
Cecilia Mairal is one of the most experienced partners in Marval O'Farrell Mairal's Banking & Finance department. · Banking & Finance
Cristian D Bittel
Cristian Daniel Bittel joined Marval O'Farrell Mairal in 2004 and became a partner in 2016. He is currently a member of the Intellectual Property department, specializing in Patents. · Intellectual Property
Daniel Di Paola
Daniel Francisco Di Paola joined Marval O'Farrell Mairal in 2000 and is currently a member of the Telecommunications, Media & Technology (TMT) department. Specialises in telecommunications and broadcasting, entertainment and corporate/M&A. He advises several key clients in the telecommunications and broadcasting industry on the complete range of matters, from sector-specific regulatory issues to general corporate matters. · Telecommunications
Diego Chighizola
He specializes in corporate finance, M&A, agribusiness and real estate. · Banking & Finance
Diego Fernández
Diego is a partner in the IP, IT & privacy practice group. He is a technology expert, with 16 years’ experience in a wide range of expertise which includes privacy & data protection, privacy compliance, privacy in internal investigations and at the workplace, RegTech (including Fintech, Insurtech and HealthTech), software licensing, IT agreements, IT compliance, cyber security, and criminal law in connection with technology. He regularly advises clients on IT and privacy-related matters, and also IP and IT in M&A transactions. He has extensive experience advising clients on IP matters, including litigation, giving the firm the unmatched capability of providing knowledgeable advice on IP and IT under the same person. · Intellectual Property
Diego Kelly
Diego S. Kelly specializes in advising multinational and local companies in labor and employment law. He has more than 14 years of experience in this practice area. His practice in the firm focuses on full employment advice for multinational and local corporations, especially in mergers and acquisitions, transference of employees, rightsizings, global transactions, union issues, complex compensation programs, equity award schemes and in adapting international policies and programs to local legislation. · Labour & Employment
Diego Krischcautzky
His practice is focused on business law, mainly on mergers and acquisitions. He has extensive experience in M&A transactions, structuring and financing of private equity investments and counseling and structuring of local and international investments. He works regularly with companies and investment funds. · Corporate / M&A
Elías Bestani
Elías F. Bestani specializes in shipping and maritime law, insurance and reinsurance in addition to the resolution of complex disputes. He advises clients on ship-finance, ship-building and ship-purchase contracts and in the merchant marine and cabotage regimes. He has experience in the structuring of LNG operations and has negotiated time and bareboat charters and volume contracts. He advises clients in marine pollution matters, collisions and in the arrest of ships. Elías also advises clients in insurance—marine and non-marine— and reinsurance, including claims and regulations. He has advised clients in the setting up of insurance companies, their investment regime, portfolio transfers and in strategic distribution arrangements. He has handled complex litigation, including cases involving sovereign immunity and oil price disputes, heard by the Argentine Supreme Court. He also advises clients on cross-border litigation. · Shipping & Maritime
Enrique Stile
He specializes in labor and employment law. His practice in the firm focuses on full employment advice for multinational and local corporations, especially in mergers and acquisitions, transference of employees, rightsizings, union issues, compensation programs and in adapting international policies and programs to local legislation. He has also a strong background in negotiating employment conditions and termination agreements with expatriates and key employees and in multi-jurisdictional labor advice. · Labour & Employment
Enrique Veramendi
He provides advice on public law, economic regulation and administrative contracts to clients in the energy and public utilities’ sectors, as well as in other regulated industries (pharmaceutical companies, banks, agribusiness and insurance firms). He also has a broad experience in constitutional litigation and litigation against administrative agencies. · Public Law
Eugenio Hoss
Eugenio Hoss is a partner at Marval in the Industrial Property team. He advises both local and international companies on a wide range of intellectual property matters, including prosecution and litigation, in Argentina and across Latin America. extensive experience advising clients on technology transfer agreements and other IP transactions. Eugenio co-leads the firm’s German Desk. · Intellectual Property
Facundo Viel Temperley
A member of the Litigation Department, he specializes in procedural law and in civil, commercial and products liability cases. His current practice is focused on litigation involving multinational matters and collective actions. · Litigation
Fernando Alemany
Fernando M. Alemany joined Marval in 2008 and is currently a Partner in the Litigation & Arbitration Department. He has vast experience in complex litigation and arbitration, both domestic and international, reorganization proceedings and debt restructuring, negotiation of commercial and transactional agreements. He has acted in a wide range of sectors, including contractual and commercial disputes, oil and gas, infrastructure, pharmaceutical and technology. · Litigation
Fernando Montes de Oca
He is specialized in litigation and dispute resolution in the civil and commercial law areas. Within his area of specialization he advises banks and financial institutions, regarding financial products, both in their regulatory aspects and in credit recovery. He also advises in conflicts between motor companies and their suppliers and distributors. · Litigation
Fernando Vaquero
Specialises in taxation issues related to M&A, financing, business restructuring, real estate projects and securitisations and has broad experience of tax litigation. · Tax
Francisco Abeal
Francisco Abeal joined Marval O'Farrell Mairal in 2004, and has been a member of its Banking and Finance and Exchange and Capital Controls Departments since 2008. · Banking & Finance
Francisco Macias
Francisco A. Macías specializes in oil & gas, power, public services, infrastructure, natural resources, environmental law and protection of foreign investment. His practice is mainly focused on international and local oil & gas, infrastructure and power transactions. He also advises clients on gas and power regulatory matters and a wide range of oil & gas and power contracts. · Oil & Gas
Gabriel A. Fortuna
Gabriel Alejandro Fortuna joined Marval O'Farrell Mairal in 2005 and is currently a member of the Environment department, specializing in matters related to mining and oil & gas. · Environment
Gabriel Gotlib
Gabriel Gotlib specializes in tax, corporate and financial law. He has broad experience in tax counseling, advising banks and local and foreign companies of different areas of practice such as real estate, retail and software. He also has experience advising on financing and international transactions and mergers and acquisitions. · Tax
Gabriel Matarasso
His areas of specialization include corporate, commercial, regulatory, project finance, trade finance and lending in general, both local and international. · Corporate / M&A
Gonzalo Fontana
Gonzalo Fontana specializes in litigation and commercial and corporate law. Within this area of specialization, he advises mainly in judicial and arbitral proceedings and gives general advice in matters related to commercial law. He is also responsible of coordinating Pro Bono work. · Litigation
Gonzalo Santamaria
Partner since 2021, Gonzalo’s areas of expertise are Administrative and Energy Law as well as other regulatory matters. He specializes in electricity, public utilities, infrastructure and government contracts. His practice is currently focused on power transactions, advising clients in connection with several renewable, thermal and co-generation projects. Gonzalo’s electricity practice includes advising power generators, project developers, EPC and BoP contractors, turbines and panel suppliers, private off-takers and financial entities, among others. · Administrative / Public Law
Guillermo Burman
His area of specialization is corporate and finance law. He gives legal advice to local and foreign companies in different areas of business and corporate law and is specialized in the design, planning, and structuring of financial transactions, including M&As, project financing, and asset securitization. · Corporate / M&A
Guillermo Osorio
He is part of the litigation team specializing in complex employment lawsuits that manages a portfolio of high-profile lawsuits, primarily disputes with executives, directors, and expatriates. Over the past decade, the team has defended multinational companies in a portfolio valued at over USD 600 million, including Argentina's most economically relevant individual labor law trial. He also provides advice from the labor perspective on mergers, due diligences, complex compensation structures, hires, and sensitive and massive terminations. At the same time, he is a member of the Firm's Strategic Innovation Committee, which has developed various technological solutions for the management of claims and lawsuits. · Labor & Employment
Gustavo Giay
He specializes in Intellectual Property litigation. His practice has focused on trademark litigation and he has extensive experience in advising businesses and individuals in matters related to managing intellectual property portfolios, including contractual and licensing agreements. He also offers advice on Internet Law issues and assessment on legal and contractual questions in new and developing technologies. · Intellectual Property
Gustavo Morales Oliver
Gustavo Morales Oliver leads the Compliance, Anti-Corruption & Investigations practice. He also has significant experience in corporate, M&A, litigation and cross-border matters. · Compliance
Gustavo P. Giay
Gustavo Giay has been a member of Marval since 1995 and was made a partner of the firm in 2003. He specializes in Intellectual Property litigation. His practice has focused on trademark litigation and he has extensive experience in advising businesses and individuals in matters related to managing intellectual property portfolios, including contractual and licensing agreements. He also offers advice on Internet Law issues and assessment on legal and contractual questions in new and developing technologies. · Intellectual Property
Hernán Slemenson
He is a member of the corporate and finance departments, and co-heads the Firm’s private equity/venture capital and equity capital markets groups. He has participated as legal advisor in a broad range of cross-border transactions including M&A, private equity, venture capital, capital markets and financing transactions. · Corporate / M&A
Horacio García Prieto
He is an expert on tax and customs law and has advised on all aspects of taxation in the processes of privatization, company reorganization and securities issues in which the firm has been involved. He also has considerable experience dealing with litigation matters brought before the Dirección General Impositiva, the Dirección General de Aduanas, the Tribunal Fiscal de la Nación and before the courts. · Tax
Héctor Mairal
An expert in administrative and business law, he has been involved in matters of high complexity and importance as advisor to national and international companies, dealing with company mergers, purchases and sales of banks and businesses, property development projects, formation of temporary business alliances, business contracts, loans and financing. He has advised in legal transactions in the field of hydrocarbons, including project financings, transfer of concessions, licenses and privatizations. As an administrative law specialist he has advised in numerous public bids and Government contracts, and in litigation arising from them. · Public Law
Ignacio Mora
Associate · Competition
Ignacio Sánchez Echagüe
He specializes in industrial property and more particularly in patent law, having advised many national and foreign firms in this area. · Intellectual Property
Iris V. Quadrio
Iris Quadrio specializes in the area of Intellectual Property, with extensive experience in advising domestic and foreign clients, principally on trademark and trade dress issues, including IP rights clearance, registration and management of IP portfolios and trademark opposition proceedings. · Intellectual Property
Javier Etcheverry Boneo
Javier Etcheverry Boneo is a partner at Marval O'Farrell Mairal since 1996, having joined the firm in 1991. Specialized in business law, his practice includes M&A, corporate finance, international capital markets, and private equity acquisitions and investments, particularly in the broadcasting, internet, media and telecommunications industries. Javier took an active part in the process of consolidation of the cable television industry, working in regulatory aspects as well as in the acquisition, merger, financing and securities offerings of several companies. In addition, he currently advices controlling shareholders and owners of media companies (broadcast TV, cable TV, newspapers and radio) as well as content and satellite services companies. · Corporate / M&A
Javier Patrón
Javier Enrique Patrón joined Marval in 1992 and has been a partner since 1997. He currently chairs the firm’s labor and employment law department and has been managing partner since 2015. · Labour & Employment
Jazmine Daruich
Jazmine Daruich joined Marval O’Farrell Mairal in 2008 and is currently a member of the International Trade & Customs department. · International Trade & Customs
Jorge Rovillard
Labor & Employment
José María Llano
His practice has focused on Labor and Social Security Law and he has specialized in providing advice to different types of businesses on labor law, be it mergers and acquisitions, employee transferal, restructuring of staff or termination agreements for key employees. · Labour & Employment
Juan Diehl Moreno
Juan M. Diehl Moreno is the head of the FinTech Department and partner in the firm’s Banking & Corporate Finance Department since 2006. He has broad experience in FinTech, foreign investments, M&A, banking, FX and capital controls, and capital markets law. In recent years, digital innovation has had an unprecedented impact on financial services, which has led him to carry out an increasingly active role in providing a full range of strategic legal advice to financial institutions and FinTech innovators. Many of whom need advice while developing and adopting products and services such as e-payment platforms and apps, blockchain and cryptocurrencies, digital loans and factoring, and digital banking. His professional practice is also focused on local and international financial and commercial transactions including M&A, bilateral and syndicated loans, debt restructuring, structuring of trusts, real estate, foreign exchange markets, IPO and public and private debt issues. His work includes a wide range of business contracts, advising major companies, banks and multilateral credit agencies in more than 100 transactions. · FinTech
Juan M. López Mañan
Juan M. López Mañán specialises in trademarks and domain names and has a growing market profile. With over 10 years’ experience he currently handles the Syngenta portfolio and has overseen due diligence reports for large mergers involving a significant amount of intellectual property rights. He is particularly insightful in clearance searches and manages many of the system implementations in his area of practice. · Intellectual Property
Juan Pablo Rothschild
His area of expertise is Customs Law, Foreign Trade and Tax Law. He advises local and international companies on customs and foreign trade in cross-border transactions. His goal is to streamline tax, customs, and logistics for the most efficient outcome. He is also experienced in bringing cases against the Customs Authority, whether from an administrative standpoint or in the Federal Tax Court and ordinary courts of law. · Customs
Julio César Rivera
He specializes in insolvency law, international and domestic arbitration, complex commercial litigations, corporate, banking and civil law. · Insolvency & Restructuring
Julio César Rivera (h)
As a partner of the Litigation & Arbitration department, he specializes in complex commercial litigation, international and domestic commercial arbitration, insolvency and constitutional law. · Litigation
Leandro Castelli
Leandro M. Castelli joined Marval O'Farrell Mairal in 1994 and became a partner in 2002. A member of the Litigation & Arbitration department, Castelli has extensive experience in complex litigation, especially in product liability and environmental claims. · Litigation & Arbitration
Leonardo Rodriguez
Leonardo G. Rodriguez provides legal advice to mining companies. He specializes in mining and commercial law and litigation, areas in which he has vast experience. · Mining
Luciano Ojea Quintana
He specializes in banking, finance, and M&A. In the banking and finance area, he has broad experience in financings and debt restructurings, project finance, (local and international) capital markets transactions, as well as in advising in banking regulatory frameworks. He also has broad experience in highly complex restructurings of banks ordered by the Central Bank. In M&A, his professional practice has been focused on international M&A transactions, foreign investments and project structuring, joint ventures, and on providing advice to corporations in finance, contractual and general commercial law. He has also advised several companies in public biddings. · Banking & Finance
Manuela Adrogué
Manuela Adrogué is a partner in the Trademarks, Technology, and Intellectual Property department at Marval, where she specializes in privacy, software protection, and technology. Her work includes managing transactions focused on the preservation of intangible assets, with a particular emphasis on intellectual property rights and personal data protection. Manuela also provides counsel on the protection of trademark portfolios, anti-piracy strategies, and domain name protection. · Intellectual Property
Martín Bensadon
He is an expert in Industrial Property and his practice focuses on Patent Law, having advised national and foreign companies in his area of specialization. · Intellectual Property
Martín Campbell
Martin Campbell has been a partner of Marval, O’Farrell & Mairal since February 2000, where he specializes in commercial, business and labor law. He advises companies on matters in these areas of specialization, and also in matters relating to the refinancing and execution of bank loans. · Commercial
Martín G. Chajchir
Martin Chajchir joined Marval in 2002 and became a partner in 2013. He specializes in Intellectual Property litigation, with a focus on trademarks, domain names, and industrial models and designs. His areas of practice include IP enforcement and anticounterfeiting ─with broad experience in preliminary injunctions and attachment and seizure measures─, general IP litigation, domain name recovery, and out-of-court claims. He represents clients in opposition and cancellation proceedings before the PTO and the Federal Courts. Additionally, he has extensive experience in pre-trial mediation proceedings, conducting negotiations and drafting settlement agreements. · Intellectual Property
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