The Criminal Defense Attorneys Doctors, Lawyers, Accountants, Police Officers, Military Members, South American Drug Cartels, Professional Athletes, Entertainment Figures, And First Time Offenders Call When They Need A Criminal Defense Attorney.

So Should You.

The Criminal Defense Attorneys Doctors, Lawyers, Accountants, Police Officers, Military Members, South American Drug Cartels, Professional Athletes, Entertainment Figures, and First Time Offenders Call When They Need a Criminal Defense Attorney.

So Should You.

Mark J. O’Brien’s cases have been featured in
Tbb
Ct
NT
Twp
ABC News
cbs-news
Fox News
NBC-news
Usa Today

Tampa Federal Criminal Defense Lawyer

Extensive Criminal Defense Experience In Federal And State Courts

Firm founder Mark J. O’Brien is a former prosecutor who has handled thousands of criminal cases. Because of this experience, our law firm is prepared to litigate any federal or state criminal case, no matter how complex. For example, our criminal defense law firm has handled hundreds of cases in federal court, including many white collar criminal prosecutions. As a result, we understand the unique issues involved in federal prosecutions.

Our Tampa white collar attorneys take on all kinds of fraud cases such as health care fraud, mortgage fraud and tax evasion allegations in Florida.

We also defend individuals charged with federal and state drug crimes. Federal courts and the state of Florida aggressively prosecute drug crimes, levying harsh penalties against offenders. Our Hillsborough County criminal defense attorneys represent individuals charged with crimes ranging from conspiracy to committing drug trafficking or importation to possession of marijuana, oxycodone or prescription drugs, and the manufacturing and distribution of methamphetamine.

Our law firm also represents individuals in appeals and post-conviction motions.

How We Can
Help You
Prac 1
Federal Crimes
Prac 2
State Crimes
Prac 3
Appeals and
Post-Conviction Motions
Prac 4
Federal/State
White Collar Crimes
Prac 5
Federal/State
Drug Crimes
Prac 6
Federal/State
Sex Crimes
Prac 7
Federal/State
Whistleblower Claims

Meet our Team Members

Mark J. O’Brien
Esquire
Read Bio

Victoria E. Hatfield
Esquire
Read Bio

Rachael E. Reese
Esquire
Read Bio

Michael S. Kennedy
Attorney
Read Bio

Attorney Olivia Nathan Headshot
Olivia Nathan
Attorney
Read Bio

Extensive Criminal Defense Experience in

Federal and State Courts

“Mark, thank you for everything. I will forever be indebted to you. You have stood by me and believed in me when it was not the popular thing to do. You are an amazing advocate.”

Adam Filthaut

  • Former Partner at the Law Firm of Adams and Diaco (Robert Adams and Stephen Diaco)
  • MJ (Todd Schnitt) Morning Show/Bubba the Love Sponge Clem Trial
  • Phil Campbell DUI Setup/Florida Bar Trial
More Testimonials