Ms Marta Colomar-Garcia > Diaz Reus International Law Firm & Alliance > Miami, United States > Lawyer Profile

Diaz Reus International Law Firm & Alliance
United States

Work Department

International Litigation and arbitration; White collar criminal defense


Administrative Managing Partner


Dual qualified (USA + Spain) Marta Colomar-Garcia brings legal experience in the U.S., Spain, and Latin America, to her practice, which includes international commercial litigation and arbitration for multinational corporations, sovereign governments, and individuals.

She is recognized for obtaining dismissal of a US $1 billion expropriation lawsuit against a Venezuelan government agency under the Foreign Sovereign Immunities Act and acting as plaintiffs’ co-lead counsel defending eight separate class action lawsuits against Argentina’s $100 billion default of sovereign debt in 2001—Seijas v. Republic of Argentina—in the U.S. District Court, Southern District of New York.

She is admitted in Florida, Washington D.C. and New York.

Certified Anti-Money Laundering Specialist (CAMS)


English, Spanish


  • American Bar Association
  • Florida Bar Association
  • International Bar Association


  • J.D., Nova Southeastern University, Shepard Broad Law Center, Ft. Lauderdale, Florida, Dual Degree Program, December 2006
  • J.D., Universitat De Barcelona, Facultat De Dret, Barcelona, Spain, Licenciada en Derecho (Spanish J.D.), June 2005

Lawyer Rankings

United States > Dispute resolution > International litigation

Diaz Reus International Law Firm & Alliance is a go-to name for disputes between US and Latin American clients. Based in Miami, the team is jointly led by Michael Diaz Jr.Gary Davidson and Brant Hadaway, and handles a range of cross-border disputes with multi-jurisdictional elements and parallel proceedings, including those involving state-owned entities or sovereign representatives. The group counts commercial litigation, financial fraud, sovereign immunity issues, asset recovery cases and construction disputes among its areas of expertise. Roland Potts is is recommended in particular for construction disputes, while Marta Colomar-Garcia is a name to note for general corporate and commercial disputes. The team also handles international criminal work, particularly with a focus on regulatory and money laundering requirements; Diaz Jr. is stands out in this regard, as does associate Javier Coronado Diaz, who splits his time between Colombia and Miami.

Latin America: International firms > Compliance and investigations

Diaz Reus International Law Firm & Alliance has a fine reputation for representing public officials and other individuals in regulatory investigations and white-collar cases, alongside its experience in OFAC sanctions. While much of the firm’s Latin America practice has centred on Venezuela over the years, it has built a much stronger record across Latin America, including Nicaragua and other Central American states. Global managing partner Michael Diaz leads many of the firm’s key cases, with support from Robert Targ, another experienced figure in white-collar crime cases, including FCPA charges, OFAC sanctions, money laundering cases and bank fraud. Marta Colomar-Garcia is noted for anti-money laundering expertise.

Latin America: International firms > International arbitration

Gary Davidson and Michael Diaz, Jr. front the Latin American international arbitration practice at Miami-based Diaz Reus International Law Firm & Alliance. The practice is focused predominantly on commercial arbitration and litigation work in sectors ranging from construction and mining to retail and technology. Clients value the firm’s ‘proven experience in all arbitration forums and procedures’ and ‘ability to integrate with internal lawyers’ on cases. The ‘methodical and organisedMarta Colomar-Garcia in Bogota is highly regarded by clients who also praise Miami-based practice co-head Diaz Jr. for his ‘deep knowledge and experience’. Matter highlights include representing Western Building Group in a $16m construction arbitration dispute in Panama against construction company Construtora Norberto Odebrecht. Former practice co-head Brant Hadaway has left the firm.

Latin America: International firms > City focus - Miami

Diaz Reus International Law Firm & Alliance is primarily known for its work in corruption investigations and white-collar criminal proceedings, frequently representing public officials, business people, high-net-worth individuals, corporates and financial institutions in Latin America, most notably in Venezuela. More recently, the firm has gained additional traction in other Latin American jurisdictions such as Nicaragua. The firm is also active in the Office of Foreign Assets Control (OFAC) sanctions matters and international arbitrations involving Latin American entities. Global managing partner Michael Diaz is a leading figure in corruption investigations into serving and former public officials, OFAC sanctions, and international arbitration. Robert Targ is a senior name in money laundering and other corruption cases, while Gary Davidson has a fine record in disputes involving Latin American individuals and businesses. Marta Colomar-Garcia is also a key name.