MERCOSUR - Argentina

Marval O’Farrell Mairal

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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.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘María Ines Brandt has extensive tax knowledge and has become a partner for us when making decisions with a tax impact. She is an excellent professional.’

  • ‘The firm has experts in all areas of the business. They always provide thorough analysis.'

  • ‘Walter Keiniger has strong knowledge and is proactive with solutions.’

  • ‘A team with extensive experience and knowledge in tax matters, in a very complex jurisdiction given the continuous changes applied by the authorities.’

  • ‘They think "out of the box" to try to provide solutions to the questions that arise with the continuous increase in legal restrictions.’

  • ‘The team is made up of members with a lot of experience and solid knowledge in taxation. They balance analysis between the legal theoretical framework and concrete experience gained in administrative and judicial courts.’

  • ‘For a client the most important attribute of a tax practice is having confidence in the advice you are given. Tax advice is often hedged, which makes it a gamble for the client. The tax practice at Marval, and particularly the advice of Walter Keiniger, does not follow this pattern. The advice is clear and well-researched and therefore valuable.’

Key clients

  • Mondelēz Argentina
  • Nike
  • Loma Negra

Work highlights

  • Advising Nike on the tax implications of a commercial restructuring of its business in Argentina.
  • Advising Loma Negra on an effort to obtain an injunction to prevent the Province of Misiones from implementing a regime requiring down-payments from taxpayers, contravening taxpayers’ rights.
  • Advising Mondelēz Argentina on negotiating and executing an asset sale agreement related to the Mantecol brand and other assets including various complex commercial agreements.

Lawyers

Hall of Fame

The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Horacio García Prieto

Hall of fameMarval O’Farrell Mairal

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.

Leading individuals

María Inés Brandt

Marval O’Farrell Mairal

María Inés Brandt is a partner of Marval O’Farrell Mairal Tax Department with more than 20 years’ experience in tax matters. She focuses on tax advice and planning and has outstanding expertise in the tax aspects of large, challenging corporate and finance transactions, including the design, planning and organization of tax-efficient transactions. She is also an expert in complex tax litigation.

Gabriel Gotlib

Marval O’Farrell Mairal

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.

Walter C. Keiniger

Marval O’Farrell Mairal

His practice involves counseling local and foreign companies in the design, planning and organization of tax efficient financial transactions, including loans, project financing, securitization of assets and derivatives. In the area of mergers and acquisitions he has been involved in many transactions, advising both buyers and sellers in the tax consequences derived from the transfer of assets and shares, and also advised on joint ventures between local and foreign companies. He also has a strong background in litigation in tax-related cases.

Practice head

The lawyer(s) leading their teams.

María Inés Brandt, Gabriel Gotlib, Walter Keiniger, Fernando Vaquero