Marval, O'Farrell & Mairal
Member firm for Argentina

Firm Overview

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 are 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, labor 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.

Chambers & Partners has recently recognized us as “Latin America Law Firm of the Year 2013.” This is the first time that an Argentine firm has received this award. Furthermore, Marval is recognized by Legal500, Who’s Who Legal, Chambers Global and several other legal publications as the leading law firm in Argentina.

We also have an office in New York, providing invaluable support on U.S. transactions. The firm has a longstanding, successful relationship with the Brazilian law firm Demarest Advogados to better assist Mercosur clients. The firm is also associated with Uría Menéndez, one of the leading law firms in Spain. Ad hoc teams comprising lawyers from both firms regularly provide advice to clients on their investments in capital market and project finance transactions, energy and infrastructure, mergers and acquisitions, tax structure planning and telecommunications.

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 Argentina and in complex cross-border transactions.

Other Offices

Marval, O'Farrell & Mairal
120 East 56th Street, Suite 420
New York, New York 10022
Tel. 1.212.838.4641
Fax 1.212.751.3854

Hernán Slemenson
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