ÓSCAR A. MERSÁN GALLI

Senior Partner
oscar@mersanlaw.com
Biography

A lawyer who graduated from the National University of Asunción (1969), with more than five decades of experience in corporate, banking, and financial law, mergers and acquisitions, and international transactions. He is one of the leading figures in business law in Paraguay.

He has advised on highly complex strategic operations and has held prominent institutional positions, including roles related to the United Nations Development Program (UNDP) and advisory positions for international financial institutions. His career has been closely linked to key processes aimed at institutionalizing and strengthening the private sector in the country.

He is a co-founder and General Counsel of the Paraguayan Chamber of Exporters and Marketers of Grains and Oilseeds (CAPECO) and serves as president of the Solidaridad Foundation, establishing a leadership role that combines legal practice, institutional expertise, and social commitment.

Practice Areas
  • Corporate Law.
  • Banking and Financial Law.
  • Mergers and Acquisitions.
  • International Business Transactions.
Education
  • Lawyer, 1969. School of Law and Social Sciences, National University of Asunción.
  • Bachelor of Arts in Philosophy, 1986. National University of Asunción.
  • Civil Aviation Pilot, 1977. Paraguayan Civil Aviation School.
Languages
Spanish | English | Portuguese | Italian
Memberships and Associations
  • CONSULEGIS, a European network of law and accounting firms.
  • Paraguayan Bar Association.
  • International Network of Lawyers.
  • European Lawyers Association (AEA).
  • Co-Founder, Honorary Member, and General Counsel of the Paraguayan Chamber of Exporters and Marketers of Grains and Oilseeds (CAPECO).
  • International Bar Association (IBA).
  • Brazil–Paraguay Business Forum.
  • Paraguayan-American Chamber of Commerce (AMCHAM).
  • American Bar Association (ABA – Commercial Law and Intellectual Property Sections).
  • Inter-American Intellectual Property Association (ASIPI).
  • Inter-American Bar Federation (FIA). 
  • Advisor to the Paraguay-Brazil Chamber of Commerce.
  • Member of the Paraguay-France Chamber of Commerce.
  • Member of the British Chamber of Commerce
  • Member of the Paraguay-U.S. Chamber of Commerce
Other Academic and Professional Activities
  • He is currently the Founding President of the Solidaridad Foundation—www.fundacionsolidaridad.org.py—a nonprofit organization dedicated to providing assistance and relief to people with disabilities.
  • After graduating with a law degree in 1969, he enrolled in the Graduate Program at the Academy of American and International Law, Southwestern Legal Foundation, at Southwestern Methodist University in Dallas, Texas, USA, in 1975. He then enrolled in the International Law Practice Program of the International Bar Association, where he was certified by the College of Law in London, England, with a Diploma in International Joint Ventures in 2006.
  • He was an Assistant Professor of Tax Law at the School of Accounting Sciences at the University of Asunción from 1975 to 1989.
  • Former General Advisor to the United Nations Development Program in Paraguay.
  • Appointed as Legal Counsel for the Swiss Embassy in Paraguay.
  • International consultant for the IFC, IIC, and the World Bank.
  • Co-Founder, Honorary Member, and General Counsel of the Paraguayan Chamber of Exporters and Marketers of Grains and Oilseeds (CAPECO).