Marval O’Farrell Mairal

Total number of partners: 68 partners
Total number of lawyers: 200+ lawyers

Firm Profile
Founded in 1923, Marval O’Farrell Mairal is Argentina’s largest law firm and one of Latin America’s leading firms. With more than 100 years of history, we provide sophisticated advice to domestic and international clients.

We are Argentina’s leading law firm, with more than 300 lawyers who have extensive experience in demanding matters and complex international transactions. This experience and strength enable us to respond quickly and take part in major, complex and demanding negotiations simultaneously, without compromising the quality of our service.

Marval O’Farrell Mairal has a strong focus on sophisticated corporate and finance transactions, as well as the country’s largest litigation and arbitration practice. Our Intellectual Property Department is also a leader in its field. We also lead in other practice areas, including tax, fintech, employment, competition, energy and natural resources, compliance, anti-corruption and investigations, public and administrative law, insurance and reinsurance, telecommunications, media and technology, and real estate and construction.

All our practice groups are led by experienced partners and experts and are formed around our clients’ objectives.

Our History
The Firm’s origins date back to 1923, in the early years of the second Radical government. By then, the renowned Sáenz Peña Law, which established universal, secret and compulsory voting, had been in force for more than 10 years. Against this backdrop, brothers Juan and Enrique de Marval joined forces and founded what would later become Argentina’s largest law firm. It initially began as an agency specialising in matters related to industrial and intellectual property.

In its early years, Estudio Marval weathered local and international crises, including the 1929 stock market crash, the outbreak of the Second World War and multiple changes of government in Argentina. After 15 years in business, and with the arrival of Jorge E. O’Farrell in 1938, the firm adopted a new name: Marval & O’Farrell. His arrival led to the creation of the firm’s legal department, enabling it to expand its practice areas. Jorge E. O’Farrell focused in particular on business law, with an emphasis on general commercial law, tax law and industrial property law.