Mark J. O'Brien

Attorney Profile

Top Rated White Collar Crimes Attorney in Tampa, FL

O'Brien Hatfield Reese, PA
 | 511 West Bay Street, Suite 330
Tampa, FL 33606
Phone: 888-496-5916
Fax: 866-202-5964
Selected To Super Lawyers: 2016 - 2021
Licensed Since: 1998
Practice Areas:
  • Criminal Defense: White Collar (90%),
  • Criminal Defense (10%)
Languages Spoken:
  • English,
  • Spanish
    Attorney Profile

    Mark J. O'Brien is the founding partner of O'Brien Hatfield, PA, located in Tampa, Florida. Representing clients throughout the state, he focuses his practice exclusively on criminal defense matters at the state and federal levels, including white collar crimes, drug offenses, securities fraud, sex offenses, mortgage fraud and criminal appeals.

    Mr. O'Brien pursued his undergraduate education at Siena College and received a Bachelor of Arts in English literature in 1995. After graduating from Delaware Law School and being awarded his Juris Doctor in 1998, Mr. O'Brien was one of only 44 applicants out of 4,000 who were hired to work as prosecutors for the Miami-Dade Office of the State Attorney, 11th Judicial Circuit. His three years in the office's felony division helped him to hone his skills as a trial lawyer as he tried numerous cases through to verdict.

    Mr. O'Brien is admitted to practice law before all of the state courts of both Florida and Massachusetts. He is also admitted to practice before the U.S. District Courts for the Southern, Middle and Northern Districts of Florida, the U.S. District Court for the Western District of Texas, the U.S. District Court for the District of Massachusetts, the U.S. Courts of Appeal for the 1st and 11th Circuits, and the Supreme Court of the United States.

    Highly regarded by his fellow professionals, Mr. O'Brien has received a "Superb" peer review rating through Avvo. He is an active participant in numerous legal organizations, including the National Association of Criminal Defense Lawyers, the Florida Justice Association, the Florida Association of Criminal Defense Lawyers and the Federal Bar Association.

     
    Practice Areas
    • 90%Criminal Defense: White Collar
    • 10%Criminal Defense
    Focus Areas

    White Collar Crime, Criminal Law - Federal, Criminal Fraud, Criminal Law, Drug & Alcohol Violations, Felony, Sex Offenses, Tax Evasion, Theft

    Selections

    Selected to Super Lawyers for 6 yearsbottom-image

    Super Lawyers: 2016 - 2021

    Email Me

    To: Mark J. O'Brien
    Super Lawyers: Potential Client Inquiry

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    The information contained in this web site is intended to convey general information. It should not be construed as legal advice or opinion. It is not an offer to represent you, nor is it intended to create an attorney-client relationship. The use of the internet or this contact form for communication is not necessarily a secure environment. Contacting a lawyer or law firm email through this service will not create an attorney-client relationship, and information will not necessarily be treated as privileged or confidential.

    About Mark O'Brien

    Admitted: 1998, Florida

    Professional Webpage: http://www.markjobrien.com/Attorneys-Biographies/Mark-J-O-br...

    Honors/Awards:

    • Super Lawyers Selection, White Collar Criminal Defense, 2016
    • Top 100 Trial Lawyers, National Trial Lawyers
    • Super Lawyers Selection, White Collar Criminal Defense, 2017
    • Top 40 Under 40, The National Trial Lawyers
    • Super Lawyers Selection, White Collar Criminal Defense, 2018

    Bar/Professional Activity:

    • Supreme Court of the United States of America, 2010
    • National Association of Criminal Defense Lawyers, Member, 2003 - Present
    • Federal Bar Association, Member
    • Massachusetts, 1998
    • United States District Court for the Southern District of West Virginia, pro hac vice
    • U.S. District Court Southern District of Florida, 2013
    • American Bar Association, 1999 - Present
    • U.S. Court of Appeals 11th Circuit, 2003
    • American Association for Justice, Member
    • Florida Bar Association, Member
    • Florida, 1998
    • United States District Court for the Eastern District of Kentucky, pro hac vice
    • U.S. District Court Northern District of Florida, 2008
    • Academy of Florida Trial Lawyers, 2004 - Present
    • U.S. Court of Appeals 1st Circuit, 2002
    • U.S. District Court Western District of Texas, 2015
    • Florida Association of Criminal Defense Lawyers, Member, 2004 - Present
    • National Trial Lawyers Association, 2012 - Present
    • U.S. District Court Middle District of Florida, 2002
    • United States District Court for the Southern District of Mississippi, pro hac vice
    • U.S. District Court District of Massachusetts, 2003

    Scholarly Lectures/Writings:

    • "Strategies For Defending Identity Theft Cases", Aspatore, 2012
    • Lecturer, Trial Advocacy Skills, Intensive Trial Advocacy Program (ITAP)

    Verdicts/Settlements:

    • State of Florida v. Matthew Buendia (former United States Marine charged with shooting a police officer) 2010-2016
    • The Florida Bar v. Adam Filthaut (prominent trial attorney accused of DUI setup in Bubba/MJ trial) 2013-2016
    • United States v. Rashia Wilson (IRS fraud) 2012-2103
    • State of Florida v. Rougned Odor (current Texas Ranger MLB player) 2010
    • State of Florida v. Jerramy Stevens - Case Number 3 (former Tampa Bay Buccaneer NFL Player) 2011
    • Represented Bubba "The Love Sponge" Clem in the Hulk Hogan v. Gawker Civil Defamation Trial, 2016
    • United States v. John Wilson (former Washington Redskin NFL player) 2012
    • United States v. Senad Djedovik (infamous Norwegian Cruse Lines employee) 2012
    • State of Florida v. Jerramy Stevens - Case Number 2 (former Tampa Bay Buccaneer NFL player) 2010
    • State of Florida v. Mary Lynn Vu (Plant High School teacher accused of having sex with her student) 2009
    • United States v. Jeanette Hevel (former Tampa Police Department Captain) 2014-2015
    • United States v. Robert Blango (notorious Fort Myers bank robber) 2005-2006
    • State of Florida v. Jerramy Stevens - Case Number 1 (former Tampa Bay Buccaneer NFL Player) 2011

    Educational Background:

    • Siena College, B.A., Bachelor of Arts, Major: English Literature, 1995
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    Office Location for Mark J. O'Brien

    511 West Bay Street
    Suite 330
    Tampa, FL 33606

    Phone: 888-496-5916

    Fax: 866-202-5964

    Mark J. O'Brien:

    Last Updated: 12/10/2020

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