Marval strengthens its Mining, Arbitration, Employment and Finance practices with the appointment of four new partners

Marval O'Farrell Mairal announced the appointment of Agustina Dellacasa, Rocío María Goyanes, Mercedes Paola Forchiassin and Martín Iván Lanús as partners of the firm, effective 1 October 2026.

The four promotions strengthen the firm’s Mining and Natural Resources, Litigation and International Arbitration, Employment, and Banking and Financepractices, which address some of the main legal needs of companies and investors operating in Argentina.

The appointments are of professionals who have spent a significant part of their careers at the firm and reinforce its strategy of internal promotion and specialisation.

Agustina Dellacasa – Mining and Natural Resources

Agustina Dellacasa joined Marval in 2018. She focuses on advising mining companies, with experience in corporate law and natural resources.

She holds a law degree from the University of Buenos Aires and an LL.M. in Energy and Climate Law from the University of Groningenin the Netherlands.

Her promotion strengthens the firm’s capacity to advise on projects and investments in the natural resources sector.

Rocío María Goyanes – Litigation and International Arbitration

Rocío María Goyanes has been with Marval since 2018 and focuses on resolving complex disputes in court proceedings and international arbitrations.

Her experience includes commercial and investment disputes, particularly in the energy, infrastructure, and oil and gas sectors.

A graduate with honours from the University of Buenos Aires, she earned an LL.M. from Columbia Law School and worked as a foreign associate on Baker Botts’International Disputes team in Washington, D.C.

Mercedes Paola Forchiassin – Employment

Mercedes Paola Forchiassin joined Marval in 2016 and advises domestic and multinational companies on complex employment matters.