Mort O’Sullivan, III

Managing Member of the Gulf Coast Division
Warren Averett CPAs & Advisors

Mort O’Sullivan has been with Warren Averett since 1981 and is the Managing Member of the Gulf Coast Division. Mort is a founding member of the former Gulf Coast firm, O’Sullivan Creel, which merged with Warren Averett in January 2012. Mort has served as a member of the Firm’s Executive Committee and leads the Firm’s Gulf Coast BP Claims Disaster Recovery Team. He has over 44 years of experience in public accounting and began his career working with an international accounting firm in Atlanta. He currently focuses on consulting and management advisory services to clients, while continuing to offer his expertise in litigation support, business valuations and mergers and acquisitions. Mort has been married to his wife Nancy for 45 years. They have two sons, two daughters-in-law and six grandchildren.

Professional Affiliations 

  • Florida Institute of Certified Public Accountants
  • American Institute of Certified Public Accountants

Community Involvement/Recognition 

  • University of West Florida Board of Trustees, Chairman
  • Gulf Power Company, Board Member
  • Institute for Human and Machine Cognition, Board Member
  • Studer Community Institute, Board Member
  • Pensacola Blue Wahoos, Board Member
  • Landrum Advisory Board
  • Community Foundation of Northwest Florida, Investment Committee
  • Fiesta of Five Flags Foundation, Board Member
  • Greater Pensacola Chamber of Commerce, Past Chairman
  • University of West Florida Distinguished Alumnus Award
  • University of West Florida Foundation Fellow
  • Professional Business Leader of the Year, Pensacola Chamber Pace Award
  • Pioneer Award, Pensacola Chamber Pace Award