Experienced White Collar Defense Attorneys

The partners at Maderal, Byrne & Furst have dedicated substantial portions of their careers to serving as federal prosecutors and criminal defense attorneys. This dual perspective allows our firm to understand exactly what works—and what doesn’t—when navigating the federal justice system. We have tried dozens of criminal jury trials and argued numerous appeals, providing a level of experience that makes a quantifiable difference for our clients.

Navigating Government Investigations and Indictments

Our firm represents both individuals and organizations facing complex legal challenges. We provide strategic counsel for those under investigation, subject to grand jury subpoenas, or facing indictment for white-collar crimes. Additionally, we handle ancillary criminal proceedings, including extradition and collateral challenges to convictions.

Led by Former Federal Prosecutors

Frank Maderal spent six years as an Assistant United States Attorney in the Southern District of Florida. During his tenure, he served as the lead prosecutor in some of the largest money-laundering cases in Miami’s history. His background includes leading international investigations into corruption, Ponzi schemes, healthcare fraud, and Bank Secrecy Act violations. Frank has also lectured federal law enforcement agencies on cyber-crime and complex financial investigations.

John Byrne further strengthens our firm’s white-collar practice with his extensive background as a former federal prosecutor. During his tenure at the U.S. Attorney’s Office, John spearheaded the prosecution of over 60 federal cases, demonstrating a sophisticated command of federal rules and criminal procedure. His caseload frequently involved high-stakes financial fraud and complex white-collar schemes, providing him with a “behind-the-scenes” understanding of how the government builds its most serious indictments. This deep-seated knowledge of DOJ tactics allows John to provide our clients with a formidable and proactive defense strategy.

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