Greg Ahlgren > Diaz Reus International Law Firm & Alliance > Miami, United States > Lawyer Profile
Diaz Reus International Law Firm & Alliance Offices
MIAMI TOWER AT INTERNATIONAL PLACE
100 S.E. SECOND STREET, SUITE 2600
MIAMI, FLORIDA 33131
FLORDIA
United States
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Greg Ahlgren
Work Department
International Litigation - White-Collar criminal
Position
Partner
Career
Born and raised in the Bayou City, Greg is a bilingual (English/Spanish) Texas lawyer with a cross-border focus, representing clients from the USA, Canada, México, Guatemala, El Salvador, Honduras, Colombia, Perú, and beyond.
Practicing in South Texas and México since 1995, he has guided clients through civil, criminal and bankruptcy matters, as well as consular and administrative issues.
Before joining Diaz Reus, Greg Ahlgren spent nearly a decade serving as general counsel to international telecommunications groups based in Texas, including X5 OpCo LLC of Dallas. As a telecom lawyer, he successfully led cross-functional teams through hundreds of sensitive investigation responses in relation to investigations conducted by the FBI, DEA, Homeland Security, and a variety of other local, state and federal law enforcement agencies in the U.S.A. This investigatory work also extended to collaboration with foreign law enforcement, including the Royal Canadian Mounted Police. Additionally, he has led multi-jurisdictional legal teams in compliance projects in the EU, India, and Argentina.
As a governmental lawyer, Mr. Ahlgren served as law clerk and staff counsel to Judge Dorina Ramos (retired) of the U.S. District Court for the Southern District of Texas, as well as chief staff counsel to Justice Melchor Chávez (retired) of the Texas Court of Appeals. In both roles, he served courts covering the Rio Grande Valley of Texas, which is a traditional hub for cross-border enforcement.
Beyond his court credentials, Mr. Ahlgren became authorized in México as a foreign legal consultant in 2007, and the following year he became licensed as a U.S. Customs Broker in the Laredo District, which covers all U.S.A. ports-of-entry from Del Rio to Brownsville. As such, he has a deep connection to cross-border enforcement, particularly in the U.S./México border region.
Languages
English, Spanish
Memberships
- U.S. Tax Court
- U.S. District Court (Eastern, Northern, Southern & Western Districts of Texas)
- Supreme Court of Texas
- Secretaría de Economía (México), Foreign Legal Consultant, 2007
Education
- The University of Texas – Pan American, Edinburg, TX, M.B.A.
- St. Mary’s University of San Antonio, TX, J.D.
- Instituto Tecnológico y de Estudios Superiores de Monterrey, México, Postgraduate Studies: International Trade Law
- The University of Texas at Austin, B.A.: government
Lawyer Rankings
Latin America: International firms > Compliance and investigations
Diaz Reus International Law Firm & Alliance is based in Miami and has strong ties to Latin America and an established record in white-collar crime and investigations. It has a history of securing government declinations of criminal prosecutions and pre-indictment resolutions strategies in criminal investigations. The firm is widely recognised for its representation of senior executives and government officials in investigations by US law enforcement agencies; it recently acted for Alejandro Andrade, the former Treasurer of Venezuela who is serving a 10-year prison sentence, in the defence of the US government’s efforts to secure and forfeit assets and monies from third parties as part of the largest FCPA case in South Florida history. The firm also has an increasing profile in sanctions violations cases. Michael Diaz has an outstanding record in major cases involving senior executives and government officials. Robert Targ is another senior practitioner with a fine reputation in representing Latin American corporates and individuals. Marta Colomar-Garcia is a key figure in anti-money laundering cases, while Javier Coronado, Juan Vargas and Houston/Mexico-based Greg Ahlgren are also prominent practitioners in the white-collar crime area. Of counsel Jorge Schmidt, a native Spanish speaker and Latin America white-collar crime specialist, joined the firm in May 2023. All named individuals are based in Miami unless stated otherwise.