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Marval O'Farrell & Mairal

This firm appears in the Who's Who Legal 100 2013

Avenida Leandro N Alem 928
Buenos Aires
+54 11 4310 0100
+54 11 4310 0200

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Marval O'Farrell & Mairal - The Who's Who Legal 100 2013

What is the Who's Who Legal 100?


Founded in 1923 by two brothers, Marval O’Farrell & Mairal has grown from strength to strength and now consists of 55 partners, 268 associates and nine of counsel spread across its offices in Buenos Aires, Córdoba and New York. The full-service law firm represents both domestic and foreign clients and places great importance on providing a top-quality legal service. Marval O’Farrell & Mairal receives a total of 48 listings across 22 practice areas, earning the title of Argentine law firm of the year for the eighth time.

Practice Area Breakdown
Arbitration 1 Life Sciences 1
Banking 3 M & A 5
Capital Markets 3 Mining 1
Commercial Litigation 1 Oil & Gas 3
Commercial Mediation 1 Patents 2
Competition 2 Product Liability Defence 3
Corporate Governance 4 Project Finance 3
Corporate Tax 2 Public Procurement 2
Insurance & Reinsurance 1 Regulatory Communications 1
Internet & e-Commerce 1 Trade & Customs 3
Labour & Employment 2 Trademarks 3

Marval O’Farrell & Mairal has a “superb” M&A practice and was involved in one of the highest value M&A deal in Argentina in 2012, advising Mead Johnson, a US-based children’s nutrition company, on the $200 million acquisition of a majority stake in Argentine dairy producer SanCor’s infant milk business. Further highlights include advising UniCredit Bank on the complex $111 million sale of 50 per cent of Banco BI Creditanstalt. Five leading lawyers from the firm are selected for inclusion in the corresponding chapter. Chairman of the firm Alfredo O’Farrell is a “brilliant corporate lawyer” who provides “superb” advice on both domestic and international M&A transactions. The breadth of his practice is demonstrated by his multiple listings in this edition; he is also recognised in our corporate governance and competition chapters. The “legendary” Héctor Mairal is noted for his “expert handling” of complex transactions and “great judgement”. In addition to his M&A practice, he is also noted for his “exceptional abilities” in corporate governance, oil and gas and public procurement. Roberto Silva comes “highly recommended” for his finance and transactional expertise and features in the banking, capital markets, M&A and project finance chapters. Santiago Carregal is a “prominent figure” in the M&A market having handled notable transactions such as the sale of GE Money Argentina to Banco Supervielle. His banking, capital markets and project finance expertise earn him additional listings in these chapters. Ricardo Walter Beller is “highly proficient” in both M&A and capital markets and clients praise his “thorough” approach.

The firm’s corporate governance practice is one of the most prestigious in Argentina and fields four practitioners in the corresponding chapter. Sebastián Martín Iribarne knows “corporate law inside-out” and Osvaldo Norte Sabino specialises in corporate conflicts and advises on issues arising from financial and commercial transactions.

Marval O’Farrell & Mairal has a strong intellectual property practice, earning three listings in our trademarks chapter and two in our patents section. Miguel O’Farrell is recognised for both his patents and trademarks work, as well as his skills as a commercial mediator. The “talented” Martin Bensadon advises both local and international firms on patent law and has a strong understanding of the life sciences industry, earning him an additional listing in the IP section of the life sciences chapter. Iris Quadrio is “internationally renowned” for her practice covering trademarks and internet, e-commerce and data protection law. Gustavo Giay is a “brilliant” IP litigator and focuses his practice on trademark piracy. He also advises businesses and individuals on managing their IP portfolios, including contractual and licensing agreements.

Luis Lucero stands out for his triple listing and features in our mining, project finance and public procurement sections. With over 25 years’ experience, he is described as a “point of reference” in the mining legal market and has “unparalleled expertise”.

Lawyers at the firm devote significant amounts of time to pro bono projects and in 2012 the firm completed over 1,100 hours. Marval O’Farrell & Mairal is particularly active in projects regarding the rights of people with disabilities and children at risk.

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Marval O'Farrell & Mairal - Professional Notice

Marval, O’Farrell & Mairal

Founded in 1923, Marval, O’Farrell & Mairal is a full-service law firm that has been providing sophisticated, high-quality advice to leading local and international companies, organisations and financial institutions for 90 years. It is the largest law firm in Argentina, comprising over 300 members, and has wide experience of international business issues and the complexities of cross-border and multi-layered transactions.

Main Areas of Practice:

Banking & Finance: Secured and unsecured credit facilities, sovereign and sub-sovereign credit, trade finance, leasing transactions, vendor and leveraged lease financings, structured finance, project finance, government guaranteed securities, buyouts, acquisition finance, bank and commercial debtor restructurings, real estate financing, and bank regulatory matters. Contact: Santiago Carregal/Roberto E Silva Jr (e-mail:

Capital Markets: Structured receivable financing, money market preferred stock issues, asset purchase and sale programmes, commercial programmes, debt and equity securities offerings, securitisations, derivatives, synthetic products, risk reduction techniques and hedging agreements, debt and equity transactions, financial trusts, open and closed end mutual funds, and capital markets regulations. Contact: Santiago Carregal/Roberto E Silva Jr (e-mail:

Commercial & Competition: International trade law, commercial agreements (including distribution and supply agreements), sale, purchase and leasing agreements, antitrust and unfair competition issues, product liability and consumer-related matters. Contact: Alfredo M O’Farrell/Miguel del Pino (e-mail:

Corporate/M&A: Inbound and outbound investment, including private equity transactions, M&A, due diligence audits, planning and joint ventures, shareholder agreements, restructurings and spin-offs. Contact: Alfredo M O’Farrell/Pablo D Viñals Blake (e-mail:

Employment: Restructuring, collective bargaining and government/union negotiations. Employee stock options and benefit plans. Employment aspects of corporate transactions. Litigation. Contact: Javier E Patrón/Enrique M Stile (e-mail:

Energy & Natural Resources: Development and financing of projects, acquisition of mining companies and all mining-related matters including exploration permits and title rights, the exploration, production, transportation, distribution, trading and marketing of hydrocarbons, contracts, environmental and regulatory issues and the development and operation of pipelines, gas treatment facilities, and power plants and other power projects. Contact: Francisco A Macías/Luis E Lucero (e-mail:

Environment: Litigation, administrative and regulatory matters and contracts, environmental audits and assessments and the evaluation of environmental liabilities and remediation programmes, M&A and real estate transactions. Contact: Francisco A Macías (e-mail:

Insurance & Reinsurance: The incorporation and acquisition of local insurers, drafting and adaptation of insurance plans and policies to Argentine law, the registration of foreign reinsurers and reinsurance brokers, and advice to brokers on litigation and ADR. Contact: Pablo S Cereijido/Leandro M Castelli (e-mail:

Intellectual Property: IP protection and management, transfer of technology and licence agreements, and international franchising agreements and licensing and registration of software, the protection of patents, utility models and ornamental design rights, trademark matters and worldwide trademark protection. Contact: Iris V Quadrio/Sergio M Ellmann (e-mail:

Litigation & Arbitration: Civil and commercial litigation, administrative proceedings, arbitration and ADR, enforcement of foreign judgments and awards in Argentina, bankruptcy and creditors’ rights (including recovery of debts), and participation in international arbitration as arbitrators, counsel or expert witnesses. Contact: Alberto D Q Molinario/Ricardo A Ostrower (e-mail:

Public/Administrative Law: All administrative law and regulatory matters, including administrative litigation. Contact: Héctor A Mairal/María Lorena Schiariti (e-mail:

Real Estate: Sale, purchase and leasing agreements, structuring, financing and development. Contact: Hernán Slemenson/Santiago Carregal (e-mail:

Tax & Customs: Tax-efficient structures for domestic and international transactions, strategic tax planning and innovative tax-driven products, customs and dumping claims. Contact: Horacio García Prieto/Gabriel Gotlib/Walter Keiniger (e-mail:

Telecommunications & Broadcasting: Regulatory and corporate matters, M&A and financing. Contact: Alberto J Rivera (e-mail:

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