ÓSCAR A. MERSÁN GALLI

Senior Partner
oscar@mersanlaw.com
Biography

Lawyer, National University of Asunción (1969), with more than five decades of experience in corporate, banking, and finance 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 transactions and has held relevant institutional positions, including roles related to the United Nations Development Program (UNDP) and advisory work for international financial institutions. His career has been closely tied to key processes of institutionalization and strengthening of the private sector in the country.

He is a co-founder and General Counsel of the Paraguayan Chamber of Exporters and Traders of Cereals and Oilseeds (CAPECO) and serves as President of Fundación Solidaridad, demonstrating leadership that combines legal practice, institutional engagement, and social commitment.

Practice Areas

  • Corporate Law

  • Banking and Financial Law

  • Mergers and Acquisitions

  • International Business Transactions

Education
  • Lawyer, 1969. Faculty of Law and Social Sciences, National University of Asunción.
  • Bachelor’s Degree in Philosophy, 1986. National University of Asunción.
  • Civil Aviation Pilot, 1977. Paraguayan Civil Aviation School.
Languages
Spanish | English | Portuguese
Memberships and Associations
  • CONSULEGIS, a European network of law and accounting firms.
  • Paraguayan Bar Association.
  • International Network of Lawyers.
  • European Association of Lawyers (AEA).
  • Co-Founder, Honorary Member, and General Counsel of the Paraguayan Chamber of Exporters and Traders of Cereals and Oilseeds (CAPECO).
  • International Bar Association (IBA).
  • Brazil–Paraguay Business Forum.
  • Paraguayan-American Chamber of Commerce (AMCHAM).
  • American Bar Association (ABA – Sections on Business Law and Intellectual Property Law).
  • Inter-American Association of Intellectual Property (ASIPI).
  • Inter-American Bar Federation (FIA).
  • Advisor, Paraguay–Brazil Chamber of Commerce.
  • Member, Paraguay–France Chamber of Commerce.
  • Member, British Chamber of Commerce.
  • Member, Paraguay–U.S. Chamber of Commerce.
Other Academic and Professional Activities
  • He is currently the Founding President of the Fundación Solidaridad – www.fundacionsolidaridad.org.py – a nonprofit organization dedicated to assisting and supporting people with disabilities.
  • After earning his law degree in 1969, he enrolled in the Graduate Program at the Academy of American and International Law of the Southwestern Legal Foundation at Southern Methodist University in Dallas, Texas, USA, in 1975. He later completed the International Practice of Law Program offered by the International Bar Association and was certified by the College of Law in London, England, receiving a Diploma in International Joint Ventures in 2006.
  • He served as an assistant professor of tax law at the Faculty of Accounting Sciences at the University of Asunción from 1975 to 1989.
  • He is a former General Advisor to the United Nations Development Programme (UNDP) in Paraguay.
  • He was appointed as legal counsel to the Swiss Embassy in Paraguay.
  • He has also served as an international consultant for the IFC, the IIC, and the World Bank.
  • He is a co-founder, honorary member, and general counsel of the Paraguayan Chamber of Exporters and Traders of Cereals and Oilseeds (CAPECO).