Mr Ignacio Torterola > GST LLP > Miami, United States > Lawyer Profile

1111 Brickell Avenue
SUITE 2715
MIAMI, FL 33130
United States

Work Department

International Law & International Arbitration




In his 25 years as a dispute resolution attorney, Ignacio Torterola has served as lead counsel, sole arbitrator, chairman and tribunal member in more than 70 high stakes international arbitrations. He is a top-ranked attorney and has been named a “Leading Arbitration Practitioner” in Latin America and worldwide by Chambers Latin America, Chambers Global and Legal 500 consecutively since 2015. Ignacio is one of the founding partners of GST LLP, a leading international dispute resolution law firm, and is based in their Washington D.C. office.

He has extensive experience in complex international law matters under the Rules of Arbitration of the International Chamber of Commerce (ICC), the International Centre for Settlement of Investment Disputes (ICSID), ICSID’s Additional Facility and the United Nations Commission on International Trade Law (UNCITRAL). His practice focuses on international litigation and commercial and investment arbitration specializing in water and sanitation, oil and gas, manufacturing, infrastructure, banking and financial services contracts and industry disputes.  

Ignacio has represented global companies, governments, and private client parties in Latin America, Europe, Asia, and the Caribbean. Most notably, he is currently lead counsel in two ICSID cases involving Guatemala and the Dominican Republic, as he leads a team of GST Lawyers in a construction arbitration involving a large Latin American construction company. Ignacio has also acted on behalf of the Government of Pakistan in one of the largest ICSID and ICC cases, and successfully defended Pakistan in the Annulment Proceedings and Revision Proceedings leading to the zero settlement of a USD 1.2 billion investment dispute. He represented an oil company in a dispute involving an off-shore drilling contract and obtained victories for a state actor in two successive international disputes, obtaining an order from a tribunal to disclose a funding agreement and an order for security for costs in favor of his client. Ignacio was also the leading lawyer in a dispute that led to the destruction of more than 10 billion dollars of fake bonds allegedly issued by a Latin American country. 

Formerly, he defended Argentina, Bolivia and Ecuador against investment disputes and has trained government officials on the matter – from these countries and beyond – under the auspices of the United Nations Conference on Trade and Development (UNCTAD). He has continued his pro-bono work assisting the Columbia (University) Center for Sustainable Investment (CCSI) in the training of foreign government officials in defending and preventing investment disputes. 

He also served as a diplomat and the Government of Argentina’s representative with ICSID (2006-2012). He negotiated on behalf of Argentina in the 2010 Arbitration Rules, the ICC’s Rules for Disputes involving states and states’ entities (2012), and represented Argentina before the WTO, UNCTAD investment committee and the OECD Investment Committee.


English, Portuguese, Spanish and Italian.


  • ICC’s Latin American group. 
  • IACL Co-Director of International Arbitration Case Law
  • UNCTAD’s list of Investment-State Dispute Settlement Specialists. 


  • Universidad Católica de Santa Fe, Law Degree (1993) 
  • Universidad Nacional del Litoral, master’s degree (1995)
  • Università di Pisa, LL.M. (1996)
  • Instituto del Servicio Exterior de la Nación (ISEN) Argentina, master’s degree (2000)
  • Cornell University, LL.M. (2002)
  • World Trade Organization Institute, diploma (2003)

Lawyer Rankings

Latin America: International firms > City focus - Miami

GST LLP is a Miami-based firm with an intense focus on international arbitration, in particular investor-state and public international law disputes involving Latin American nations. While the firm’s practice covers a range of geographies around the world, Latin America remains its true forte, and it continues to be noted for its representation of sovereign states and investors in major headline cases. This includes acting for the Bolivarian Republic of Venezuela and its state-owned oil and gas entity Petróleos de Venezuela (PDVSA) in a number of disputes. Diego Gosis, Quinn Smith and Ignacio Torterola comprise a senior bench of genuine Latin America arbitration specialists.

Latin America: International firms > International arbitration

With a decade in the market, highly regarded international arbitration boutique GST LLP is now an established market presence, regularly handling sizeable, high-impact cases globally. The firm recently strengthened its Latin American practice notably with the May-2021 hire of Venezuelan practitioner Carmine Pascuzzo as counsel in the Washington DC office; and the addition of Domenico di Pietro (from Bryan Cave Leighton Paisner LLP) as a partner at the London office the following month. Founding partners Ignacio Torterola (in Washington DC), and Diego Gosis and Quinn Smith (in Miami) co-lead the Latin America team, which acts primarily in ICSID, UNCITRAL and ICC proceedings – be it as counsel or arbitrators. In addition to commercial matters, the practice has developed a strong roster of sovereign clients, including Venezuela and Guatemala. An experienced and capable second line is led by Pablo Mori (in Washington, DC) and Katherine Sanoja (in Miami), who were both raised to counsel in May 2020. Associate Fabian Zetina is also noted.