John Gast

John D. Gast


5811 Pelican Bay Boulevard
Suite 650
Naples, Florida 34108

Primary Practices

John D. Gast has decades of experience working with families as they plan their estates. John has lived in Southwest Florida for over 30 years and concentrates his practice on estate planning, charitable gift planning, life insurance, domicile planning, probate litigation, trust and estate settlement and taxation.

John knows each family is different and works with them to craft a custom plan that fits their individual needs.

Professional History

  • Partner, Hahn Loeser & Parks LLP, 2020 – present
  • Partner, Brennan, Manna & Diamond, PL, 2008- 2020
  • Partner, Fowler White Boggs Banker, 2005-2008
  • Executive Vice President, Head of SWFL Wealth Management, Suntrust Bank, 1999 – 2005


  • Capital University, J.D.
  • University of Michigan, B.A.
Community Involvement

Board Member/ past Chairman of the Board, David Lawrence Center, 1991 t0 2013


Gift Planning Member, Conservancy of Southwest Florida, 2005 to 2008


Professor, Edison Community College, Business Law & Micro Economics, Professor of the Year, 1993 & 1995


Awards & Distinctions

The Best Lawyers in America®, Litigation – Trusts and Estates, 2013-24; Trusts and Estates, 2024


Top Lawyer, Naples Illustrated, Trusts and Estates, 2022

Bar Admissions

State of Florida


State of Ohio