Florida Federal Defense Attorneys Relentlessly Defending Your Rights and Freedom
When your future is on the line in a federal case, you need a Florida federal defense attorney with the experience, judgment, and tenacity to win. Mark J. O’Brien, Esq. is a nationally-recognized defense lawyer with over 25 years of courtroom trial experience. He began his career as a Miami prosecutor in the late 1990s, then founded his own firm in 2002 with a mission to defend those accused of federal crimes using a blend of old-school values and modern strategies. From 2002 to 2012, he defended individuals and corporations in federal courts across Florida; since 2012, he has expanded his practice to federal courts nationwide. New York raised, Philly tough, and Florida tested, Mr. O’Brien has seen—and successfully handled—virtually every challenge federal criminal practice can present. Case after case, court after court, his record speaks for itself: Mr. O’Brien triumphs against tough odds.
Powering that track record is a purpose-built Florida Federal Defense Team designed to stay one step ahead of the government. In addition to Mr. O’Brien’s decades of prosecutorial and defense experience, his team includes a former DEA Special Agent, a former IRS Criminal Investigation Division Special Agent, a former United States Probation Officer, and a former law enforcement detective—professionals with more than a century of combined experience in federal and state criminal courts nationwide. That depth of insight into how cases are built, investigated, charged, and sentenced allows the firm to anticipate the government’s next move and craft precise, proactive defenses tailored to your situation. If you’re facing federal charges in Florida, or anywhere in the U.S., Mr. O’Brien and his team have the resources, training, and resolve to pursue the only objective that matters: win.
We represent clients in all Florida cities and counties, including:
- Clearwater
- Fort Lauderdale
- Fort Pierce
- Gainesville
- Hialeah
- Jacksonville
- Miami
- Orlando
- Ocala
- Pensacola
- Sarasota/Bradenton
- St. Petersburg
- Tampa
- Tallahassee
- West Palm Beach
No Case Results Promises
There are no absolute guarantees in life and any attorney who promises specific results is not being honest with you. I will not make promises I cannot keep, but I will provide you with honest, straightforward legal advice, and I will work as hard as possible to achieve your desired result in your case. We are in this together, and we must be honest with each other throughout this process. Honesty is the best path forward in any type of legal matter, but especially in federal criminal defense.