Compassion And Experience, First And Foremost

John Larsen Mulvihill

John Larsen Mulvihill

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Practice Areas

  • Personal Injury
  • Car Accidents
  • Motorcycle Accidents
  • Bicycle Accidents
  • Pedestrian Accidents
  • Slip & Falls
  • Traumatic Brain Injuries
  • Trucking Accidents


John Mulvihill started his legal career as a Prosecutor at the Pinellas County State Attorney’s Office. John used this time to develop his courtroom skills by completing over twenty jury trials along with numerous bench trials and evidentiary hearings. While representing the State of Florida in the prosecution of criminal cases, John sharpened his trial skills – from selecting a jury to presenting an effective closing argument and everything in-between.

After serving the residents of the State of Florida, John left the State Attorney’s Office to pursue a career in personal injury litigation. John now dedicates the entirety of his career in the civil sector to representing the injured in all areas of personal injury – from car accidents, motorcycle accidents, bicycle accidents and pedestrian accidents to slip & falls, traumatic brain injuries, and trucking accidents.

Prior to founding Thacker and Mulvihill, PLLC, John worked as an attorney at two of the biggest advertising personal injury law firms in the Tampa Bay Area. While working at these firms John learned all facets of the personal injury litigation field, including help lead the litigation department at one of the firms. John performed countless depositions, mediations, court hearings, and ten jury trials during his tenure at these firms. John then went on to create the personal injury department at the boutique Plaintiff’s firm Corless Barfield Trial Group.

At Thacker and Mulvihill John continues to serve the victims of personal injury accidents throughout the Tampa Bay area and the State of Florida.

John is able to bring a unique and effective form of personal injury litigation. John believes that, Thacker and Mulvihill’s smaller size, but ample resources allow him to provide a personal level of care that is not found at larger advertising firms. These unique circumstances allow John to develop a personal relationship with all of his clients and bring the resources required to fight a large insurance company.

John moved to St. Petersburg in 2001 and immediately fell in love with the Tampa Bay area. As a continued resident of St. Petersburg, he believes it is important to give back to the community you love. John currently volunteers his time through the USF Legal Aid Program and the Hillsborough County Bar Association / Fox 13 Ask-a-Lawyer program.

A graduate with honors (Cum Laude) from Stetson University College of Law, John is the loving father of two young children and an enamored husband. John is an avid swimmer and regularly participates in open water swimming events.


  • Stetson University College of Law, Deland, Florida
    • J.D. - 2004
    • Honors: cum laude
    • Honors: With High Honors
    • Honors: Phi Delta Phi Honor Fraternity 2003-2004
  • University of South Alabama
    • B.A. - 2001
    • Honors: Deans List 1999, 2000
    • Honors: Student Government Association Treasurer
    • Honors: Who’s Who Among University and College Students

Pro-Bono Activities

  • Fox 13 Ask-a-Lawyer
  • University of South Florida Legal Aid
  • Provide Pro-Bono Legal Advice to Students at the University of South Florida

Past Positions

  • Prosecutor at the Pinellas County State Attorney’s Office

Professional Associations

  • Hillsborough County Bar Association (Member Since: 2013)

Current Employment Position

  • Founder

Bar Admissions

  • Florida, 2004
  • U.S. District Court Middle District of Florida
  • U.S. District Court Southern District of Florida