Firm Profile > GST LLP > Miami, United States

1111 Brickell Avenue
SUITE 2715
MIAMI, FL 33130
United States

Latin America: International firms > City focus - Miami Tier 1

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.

Practice head(s):

Diego Gosis; Quinn Smith; Ignacio Torterola

Latin America: International firms > International arbitration Tier 4

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.

Practice head(s):

Ignacio Torterola; Diego Gosis; Quinn Smith

Key clients

Dominican Republic



Petróleos de Venezuela

Werthein Group

Republic of Ecuador

Triangulo Pisos e Paineis



GST LLP is an international dispute resolution firm with offices in Washington, D.C., Miami, and London. The firm has represented global companies, governments and private clients in Latin America, Europe, Asia, and the Caribbean in high-stakes and multi-billion-dollar cases.

Combining personal boutique service with a comprehensive understanding of international arbitration, GST brings expertise, diversity and a unique ethos of leadership to its engagements with clients, its role on tribunals, and its contributions to the literature of a developing field. 

Since its founding, GST has stood out against an increasingly complex backdrop of global business. The firm is growing along with the body of case law that reflects the latest developments in this arena. Individually, each partner’s unique skillset, distinguished background, and dedication to the field is exceptional. Collectively, the team comprises deep experience that spans the continents.

GST has deep expertise in numerous industries and specialized sectors including mining and oil; construction; finance; electric power and energy; transportation; information and communications; agriculture and food; and sports and tourism. Many of the firm’s cases have redefined the practice of international investment and commercial arbitration. 

Department Name Email Telephone
Quinn Smith 305-856-7723
Photo Name Position Profile
 Domenico Di Pietro  photo Domenico Di Pietro Partner
Mr Mauricio Gomm Santos photo Mr Mauricio Gomm Santos Founding Partner Areas of Practice include Agency/Distribution, Franchising, Corporate, Infrastructure, Joint-Ventures, Logistic…
 Diego Gosis photo Diego Gosis Partner
Mr Quinn Smith photo Mr Quinn Smith
 Ignacio Torterola photo Ignacio Torterola Partner
American Arbitration Association
International Chamber of Commerce (ICC)
The Latin American Group of the ICC International Court of Arbitration
ICC Commission on International Arbitration
ICDR Young & International