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James Demere Mason Sr

About me

Mr Mason Sr. is Board Certified by the Florida Bar as an expert in the field of Family Law and one of only a select few attorneys to hold this distinction in North Florida.  Mr. Mason also holds the Martindale Hubbel rating of AV for Preimminent Lawyers.  Mr. Mason had been listed by multiple local publications as amongst the top Famly Law Lawyers in the city.  Mr. Mason specializes in financially complex cases, custody, alimony and distribution of assets.  Mr. Mason has been practicing since 1981.


Practice areas


  1. Divorce & Separation: 20%
  2. Family: 20%
  3. Child Support: 20%
  4. Child Custody: 20%
  5. Alimony: 20%



Hourly ($325/hour)

Payment types:

Cash, Credit card

Attorney endorsements

9 total 

Are you an attorney? Endorse this lawyer

  • Diane Lynn Paull

    I endorse this lawyer. He is extremely knowledgeable in the law and always up on the statutes, rules, etc., on any subject. He is an outstanding part of our legal community


    Diane Paull Family Attorney
    Relationship: Fellow lawyer in community

  • Edward Pendleton Jackson

    Brilliant and fair. Highly qualified and very experienced lawyer. Absolutely Honest


    Edward Jackson Bankruptcy & Debt Attorney
    Relationship: Fellow lawyer in community

Contact info

J. Demere Mason P.A.

The Park at Deerwood Center
8130 Baymeadows Way West Suite 304
Jacksonville, FL, 32256


FLMember in Good Standing198109/08/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2014
Board Certified - Marital & Family LawFlorida Bar1998
Top Lawyer904 MagazineN/A
Work experience
TitleCompany nameDuration
Senior PartnerJ. Demere Mason P.A.1999 - 2013
PartnerJackson and Mason P.A.1992 - 1999
Association namePosition nameDuration
American Inns of CourtMaster1998 - Present
Florida BarFamily Law Section1998 - Present
Family Law American Inn of CourtMasterN/A
Legal cases
Case nameOutcome
Petry v. PetryPer Curiam Affirmed
Carr v. ShawfrankSuccesfully reduced alimony and successfully defended on appea.
Brulte v. BrulteSuccessful trial and successful defense on appeal.
See all legal cases 
Publication nameTitleDate
National Business Institute SeminarDividing Assets and Debts Equittably2010
Jacksonville Bar AssociationThe Supremes "when they sing you should listen"2009
School nameMajorDegreeGraduated
University of Miami School of LawLawJD - Juris Doctor1981
Jacksonville UniversityAccountingBS - Bachelor of Science1978
University of FloridaN/AN/A1976
Speaking engagements
Conference nameTitleDate
Handling Divorce Cases from Start to FinishDivorce2010
Jacksonville Bar Family Law SeminarFamily Law2009