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Truman John Costello Jr.

Truman John Costello Jr.

also known as T. John Costello Jr., John Costello

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About Me

John focuses his practice on estate planning, probate, and related litigation. He also advises clients on intellectual property matters and has served as lead counsel in copyright, design patent, and trademark actions in federal court. Prior to attending law school, John worked as a Software Engineer for Northrop Grumman Corporation in both Melbourne, Florida and San Diego, California. John earned his law degree with honors from Emory University School of Law where he received the Dean’s Award in Federal Wealth Transfer Taxation and participated in the TI:GER Program (Technological Innovation: General Economic Results) at the Georgia Institute of Technology.



Practice Areas


  1. Probate: 30%
  2. Litigation: 30%
  3. Estate Planning: 30%
  4. Intellectual Property: 5%
  5. Guardianship: 5%


Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

4 total 

  • Lesley Elizabeth Burkert

    John is an attorney of integrity, knowledge and experience. I would recommend anyone to him for estate planning, intellectual property, guardianship, or other probate issues. He works well with his clients and is always a pleasure.


    Lesley Burkert Employment & Labor Attorney
    Relationship: Fellow lawyer in community

  • Scott Thomas Moorey

    I endorse this lawyer. John is a true professional. Honesty, integrity, and hard work is what he provides each and everyone of his clients.


    Scott Moorey Criminal Defense Attorney
    Relationship: Fellow lawyer in community

Contact Info

Wollman, Gehrke & Solomon, P.A.

2235 Venetian Court
Suite 5
Naples, FL, 34109


FLMember in Good Standing200909/08/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
FellowshipReal Property, Probate & Trust Law Section of The Florida Bar2014
Dean's Award - Federal Wealth Transfer TaxationEmory University School of Law2009
Work Experience
TitleCompany NameDuration
AssociateWollman, Gehrke & Solomon, P.A.2015 - Present
Of CounselKelley Kronenberg P.A.2012 - 2014
AssociateCostello, Royston & Wicker, LLP2009 - 2011
Software EngineerNorthrop Grumman Corporation2002 - 2006
Association NamePosition NameDuration
Estate Planning Council of Lee County, FloridaPresident2015 - Present
Estate Planning Council of Lee County, FloridaFirst Vice President2014 - 2015
Estate Planning Council of Lee County, FloridaSecond Vice President2013 - 2014
Tax Law Section of the Florida BarMember2013 - Present
Estate Planning Council of Lee County, FloridaMember2012 - Present
Lee County Bar AssociationMember2009 - Present
Real Property, Probate, and Trust Law Section of the Florida BarMember2009 - Present
Publication NameTitleDate
Lifestyle EsteroEnsuring Your Inherited IRA Gift Will Be Well Received2012
School NameMajorDegreeGraduated
Emory University School of LawLawJD - Juris Doctor2009
The Florida State UniversityComputer ScienceBachelor's of Science2002
Bishop Verot High SchoolN/AN/A1998
Speaking Engagements
Conference NameTitleDate
Partnership for Philanthrophic Planning of Lee CountyDemystifying Planned Giving2014
Estate Planning Council of Lee CountyEthics and Security When Using the Cloud in Your Estate Planning Practice2014
Financial Planning Association of SW FloridaCharitable Giving & Trust Planning With Retirement Benefits2013