Areas of practice

White Collar Crime, Government Sanctions
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Diaz Reus internationally renowned white-collar criminal defense attorneys know white-collar crime in depth—as former federal and state prosecutors and as white-collar defense counsel. Our noted white-collar criminal defense team has achieved positive outcomes in high-profile cases for multinational corporations, businesspeople, professionals and government officials, in both domestic and international white-collar criminal investigations and prosecutions.

We also help U.S. companies, multinational corporations, and international financial institutions comply with U.S. government and foreign government regulations at all levels, as well as to establish and maintain through corporate governance their global commercial operations compliant with banking and anti-money laundering regulations, OFAC, CAATSA, GLOMAG, Magnitsky and other sanctions programs. Additionally, our white-collar team is adept at pre-indictment and grand jury investigations, post-indictment defense and sentencing guidelines. Our team has a track record in the delisting of persons and entities from the OFAC sanctions list.

From Russia and China to the Middle East, Latin America and the United States, our clients trust our team.  We are well known and highly regarded speakers at national and international conferences. Diaz Reus is repeatedly recognized by international ranking-organizations for its abilities, leadership, professionalism, and high ethical standards.

‘A team of honest, transparent lawyers, who always act within the framework of legality, even in a complex world such as criminal law. The team includes lawyers who were prosecutors, which ensures their strategies are informed by their understanding of the relevant institutions.’ The Legal 500 Latin America 2025 "Diaz Reus & Targ has a strong depth of experience in complex and sophisticated work, especially in international recovery of assets and cross-border matters." Chambers Latin America 2024 "The diverse team is able to provide knowledge of different legal systems, languages and procedures." Legal500 USA 2022 "Michael Diaz is a fearless, confident, and substantively-strong counsel, to understands needs, short and long-term goals, and delivers quickly and efficiently." Legal500 USA 2022 "I worked with Michael Diaz, Robert Targ, and Juan Vargas; all of them have impressed me, they have different skills and together they made an excellent team." Legal500 USA 2022 “Miami-based firm Diaz Reus & Targ is skilled in representing Latin American individuals and companies that are caught in the crosshairs of US enforcement investigations.”

  GIR 100 "Robert Targ is a prominent figure in white-collar crime and investigations.

Administrative managing partner Marta Colomar-Garcia is another key figure." Legal 500 Latin America Michael Diaz has a long-standing practice advising on investigations and compliance matters involving financial fraud, international asset recovery and white-collar crime. Clients commend his "leadership skills" and highlight "his impressive knowledge and availability." Chambers Global “It is an excellent firm whose lawyers are skilled, experienced and well organized and provide an excellent service. They are a problem-solving firm that inspires confidence and is truly superior in diligence and client care.” Chambers USA “It is a relatively small firm that nevertheless has an impressive dispute resolution practice.” Legal 500 USA “The firm provides a very specialized service.” Chambers Global "The team is excellent. Their principal strength is that they have members with great experience, and they always share information and take decisions evaluating all the possibilities. This makes the team really strong and very difficult to defeat." Chambers USA “Established practice group with noteworthy experience assisting the pre-indictment resolution of criminal investigations conducted by the USA, with a particular focus on representing high net worth individuals. Has additional strength advising on white-collar crime, as well as regulatory and criminal investigations.” Chambers Global “The firm has an outstanding reputation for handling investigatory and criminal matters arising out of Latin America.” Legal 500 USA "The main individuals include ‘extraordinary, skilled and sophisticated attorney’ Michael Diaz; Robert Targ; Juan Vargas; and Marta Colomar-Garcia, recommended for her ‘good industry knowledge’." Legal 500 USA "The level of professionalism is outstanding and they provide prudent advice for every issue. They know when to push and when to negotiate on your behalf. We were very impressed." Chambers USA “Diaz, Reus & Targ boasts a team of former police officers and FBI agents as well as experienced white-collar lawyers, making the firm a natural choice for executives under fire.” GIR 100 “Reliable, responsive and reasonable. They are consistently good.” Chambers USA "Their main strength is the way they manage the relationship with clients, establishing a mutual confidence in order to understand the problems and focus on the best solution." Chambers USA “They deliver exactly what they promise and what they advise is exactly what happens. They deliver results."

Clients single out Michael Diaz for his "professionalism, knowledge and fluent Spanish and English. He is the one you want if you have a legal matter on your hands." Chambers Latin America "Global managing partner Michael Diaz has an outstanding reputation in FCPA, OFAC, white-collar crime and investigations." Legal 500 Latin America “Miami-based firm Diaz Reus & Targ is skilled in representing Latin American individuals and companies that are caught in the crosshairs of US enforcement investigations.” GIR 100 "Eminent Miami-based group serving both local and international clients in complex criminal proceedings before US courts. Active in white-collar crime and fraud, representing a large quantity of high net worth individuals and a growing number of corporations in investigations led by US authorities." Chambers Latin America