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William T. Hennessey

William T. Hennessey
Primary Office
777 South Flagler Drive
Suite 500 East
West Palm Beach, Florida
33401-6194
P: (561) 650-0663
F: (561) 655-5677
whennessey@gunster.com
  • Lexis Nexis
  • South Florida Legal Guide
  • Super Lawyers Florida
  • The Best Lawyers in America
Chair, Probate, Trust & Guardianship Litigation, Shareholder

Mr. Hennessey is Chairman of the Probate and Trust Litigation Committee of the Real Property, Probate, and Trust Law Section (RPPTL) of the Florida Bar and is a member of RPPTL’s Executive Council. He is a Fellow of the American College of Trust and Estate Counsel (ACTEC) and a frequent author and lecturer on probate and trust litigation topics.

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Practice Areas[ - ]
  • Complex and Disputed Estate and Trust Administration
  • Probate, Trust, and Guardianship Litigation
  • Will and Trust Contests and Defense of Fiduciaries and Beneficiaries
  • Will and Trust Construction
  • Trust Modification, Revocation, and Termination
  • Surcharge and Removal Litigation
  • Competency Proceedings
  • Appointment of Guardian
Education[ - ]
  • University of Florida, J.D., highest honors, 1996
    • Senior Editor, Florida Law Review
  • Teaching assistant, legal research and writing
  • University of Florida, B.S., highest honors, 1993
Honors[ - ]
  • South Florida Legal Guide, “Up & Comer,” 2011
  • The Best Lawyers in America, Trusts & Estates, 2008-12
  • AV Rated as independently determined by Martindale-Hubbell
  • Florida Super Lawyer
  • Fellow of the American College of Trust and Estate Counsel
Seminars & Presentations[ - ]
  • “Fiduciary Litigation in an Era of Rapidly Changing Technology: Will You Be the Last Samurai?,” ACTEC 2010
  • “Till Death Due Us Part: Challenging the Validity of Marriage in Probate Proceedings,” Your 2007 Trust & Estate Symposium (Florida Bar), Florida Fellows Meeting, ACTEC 2008
  • “Conflicts Quagmire I: Payment of Trustee Attorneys’ Fees When Defending Breach of Duty Claims,” 2008 Legislative and Case Law Update (Florida Bar)
  • “Tangled Web-Attorney-Client and Fiduciary Conflicts,” Probate Team Florida Legal Education Association, 2008
  • “Avoiding the Grinch: Drafting, Enforcing, and Challenging Charaitable Pledges,” Planned Giving Council/East Coast Estate Planning Council, 2009
  • “Conflicts Quagmire II: Recognizing and Addressing Conflicts for Your Fiduciary Clients,” Your 2006 Trust & Estate Symposium, (Florida Bar)
  • “Your 2008 Trust and Estate Symposium-Litigation Under the New Trust Code,” Program Chair (Florida Bar)
  • “Uncivil War: Navigating the Minefields of Probate and Trust Litigation,” Wills, Trusts and Estates Certification Review Course
  • “Probate Trust and Litigation: When the “Ties That Bind” Unwind,” Wills, Trusts and Estates Certification Review Course (Florida Bar)
  • “What’s Good for the Goose . . . Elective Share and Other Spousal Rights,” Wills, Trusts and Estates Certification Review Course (Florida Bar)
Publications[ - ]
  • “Intestate Succession,” Litigation Under Florida Probate Code (3d, 4th, 5th, 6th, and 7th ed.)
  • “Will Construction,” Litigation Under Florida Probate Code, (3d, 4th, 5th, 6th, and 7th ed.)
  • “Elective Share,” Practice Under Florida Probate Code, (3d, 4th and 5th ed.)
Bar Admissions[ - ]
  • The Florida Bar
    • Probate and Trust Litigation Committee, Former Chair
    • Executive Council of RPPTL Section
    • Probate Rules Committee, member
    • Probate Law and Procedure Committee, member
    • Trust Law Committee, member
Civic & Community Service[ - ]

Community Foundation of Palm Beach and Martin Counties, Executive Committee of Professional Advisors