Photo of John D. Mullen
  • PRACTICE FOCUS
  • EDUCATION+
    • New York University School of Law
      J.D., 1994
    • New College of the University of South Florida
      B.A. in Philosophy and Political Science, 1989; Honors College
  • ADMISSIONS+
    • Florida
    • U.S. Court of Appeals for the Eleventh Circuit
    • U.S. District Court, Middle District of Florida
    • U.S. District Court, Northern District of Florida
    • U.S. District Court, Southern District of Florida
    • U.S. Supreme Court
  • CLERKSHIP+
    • Hon. Steven D. Merryday, U.S. District Court, Middle District of Florida 

John Mullen practices in the areas of labor and employment law and in complex commercial litigation and arbitration. He regularly drafts and negotiates employment contracts and litigates non-competition and non-solicitation agreements and trade secret claims. He advises and represents employers in the defense of age, race, gender, sexual harassment, disability, and FMLA discrimination and retaliation claims in both federal and state court trial practice and in arbitration and administrative proceedings.

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John Mullen practices in the areas of labor and employment law and in complex commercial litigation and arbitration. He regularly drafts and negotiates employment contracts and litigates non-competition and non-solicitation agreements and trade secret claims. He advises and represents employers in the defense of age, race, gender, sexual harassment, disability, and FMLA discrimination and retaliation claims in both federal and state court trial practice and in arbitration and administrative proceedings.

John has extensive experience in defending class actions and other complex litigation involving insurance coverage and consumer-oriented claims. He has litigated state-wide, multi-state, multi-district (MDL), and national class actions. He is well-versed in directors’ and officers’ liability disputes, shareholder derivative actions, and securities litigation and arbitration. John’s practice has often involved representing London-market insurers, as well as national and regional U.S. firms.

He currently serves as the chair of the Ethics Committee for the firm.

Insights

Publications
  • Class Actions and Derivative Suits Report, American Bar Association (1998-2005) Contributing Editor
Speaking Engagements
News

Memberships & Affiliations

Professional

  • The Florida Bar, Labor and Employment Section
  • Hillsborough County Bar Association, Labor and Employment Section
  • Global Alliance of Hospitality Attorneys
  • Leadership Tampa Alumni (Class of 2012)

Civic

  • Friends of the Library, Tampa-Hillsborough County, Inc. - President (2017-Present), Former Vice President and Board member (1997-2016)
  • Friends of the John F. Germany Library - President (2017-Present), Board member (2008-Present)
  • Tampa Museum of Art 
  • USF Humanities Institute 
  • Sierra Club
  • National Parks Conservation Association
  • Florida Audubon Society
  • Massachusetts Audubon Society
  • Museum of Science, Boston
  • University of South Florida Muma College of Business Digital Marketing Certificate Program - Advisory Board Member (2019-2020)

Recognition

  • AV Preeminent Peer Review Rated, Martindale-Hubbell
  • Employment Law - Management (2011-2020), Litigation - Labor and Employment (2011-2020), The Best Lawyers in America
  • Florida Super Lawyers list, Super Lawyers (2007-2020)
  • Friends of The Library's Best Friend of the Year Award, Tampa-Hillsborough County, Inc. (2008)
  • Legal Elite, Florida Trend

Education

  • New York University School of Law
    J.D., 1994
  • New College of the University of South Florida
    B.A. in Philosophy and Political Science, 1989; Honors College

Admissions

  • Florida
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. District Court, Middle District of Florida
  • U.S. District Court, Northern District of Florida
  • U.S. District Court, Southern District of Florida
  • U.S. Supreme Court

Clerkships

  • Hon. Steven D. Merryday, U.S. District Court, Middle District of Florida 
Publications
  • Class Actions and Derivative Suits Report, American Bar Association (1998-2005) Contributing Editor
Speaking Engagements
News

Professional

  • The Florida Bar, Labor and Employment Section
  • Hillsborough County Bar Association, Labor and Employment Section
  • Global Alliance of Hospitality Attorneys
  • Leadership Tampa Alumni (Class of 2012)

Civic

  • Friends of the Library, Tampa-Hillsborough County, Inc. - President (2017-Present), Former Vice President and Board member (1997-2016)
  • Friends of the John F. Germany Library - President (2017-Present), Board member (2008-Present)
  • Tampa Museum of Art 
  • USF Humanities Institute 
  • Sierra Club
  • National Parks Conservation Association
  • Florida Audubon Society
  • Massachusetts Audubon Society
  • Museum of Science, Boston
  • University of South Florida Muma College of Business Digital Marketing Certificate Program - Advisory Board Member (2019-2020)
  • AV Preeminent Peer Review Rated, Martindale-Hubbell
  • Employment Law - Management (2011-2020), Litigation - Labor and Employment (2011-2020), The Best Lawyers in America
  • Florida Super Lawyers list, Super Lawyers (2007-2020)
  • Friends of The Library's Best Friend of the Year Award, Tampa-Hillsborough County, Inc. (2008)
  • Legal Elite, Florida Trend