Horacio García Prieto > Marval O’Farrell Mairal > Buenos Aires, Argentina > Lawyer Profile

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.