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About me

I am an attorney and mediator focusing in divorce/family law.  I have been a licensed attorney for approximately nine years, graduating from St. John's University Law School in 2006. 


My office --John A. Gemelli, P.C.-- is a boutique matrimonial firm located in Forest Hills near Eddie's Sweet Shop.  We represent individuals in divorce and family law matters in the five boroughs of New York City, Long Island, and Westchester County.


Please contact me if you are in need of assistance.



David is a Senior Associate at John A. Gemelli, P.C.; his practice is exclusively in divorce & family law, pursuing his clients’ rights in divorce, custody & parenting time, child support, maintenance (alimony), equitable distribution, & other family law matters in the Five Boroughs, Long Island, and Westchester County.


As both a litigator & trained divorce mediator, David prides himself in taking practical, common sense approaches to resolving conflicts, pursuing creative solutions to some of the most difficult problems in divorce & family law matters. When appropriate, David explores every possible avenue to help settle a case, moving matters to conclusion expeditiously and with dignity, without sacrificing thoroughness.

David is a member of the Queens & Nassau County Bar Associations, as well as the Young Lawyers Committee.


Practice areas


  1. Divorce: 50%
  2. Child Support: 20%
  3. Child Custody: 20%
  4. Mediation: 5%
  5. Prenuptials: 5%



Retainer (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

4 total 

Are you an attorney? Endorse this lawyer

  • Josh Ketover

    David Gross served as the opposing attorney on a complex and somewhat contentious divorce. The parties were very angry and emotional. Things could have spiraled out of control but thanks in large part to David's calm demeanor and excellent skills as a divorce attorney he helped bring the case to an amicable resolution for all parties. As a level headed but fierce advocate, David is an asset not just to his clients but to the matrimonial bar in general.


    Josh Ketover Personal injury Attorney
    Relationship: Opposing Counsel on matter

  • Barry J. Gross

    I endorse this lawyer. David is an incredibly bright, articulate and honorable attorney. He fights hard for his clients and succeeds in obtaining excellent results for them.


    Barry Gross Divorce and separation Attorney
    Relationship: Family member

Contact info

John A. Gemelli, P.C.

10515 Metropolitan Ave
Forest Hills, NY, 11375-6737


NYCurrently registered 200707/10/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV Preeminent RatingMartindale-Hubbell2013
Work experience
TitleCompany nameDuration
Senior AssociateJohn A. Gemelli, P.C.2006 - Present
Association namePosition nameDuration
Nassau County Bar AssociationN/AN/A
Queens County Bar AssociationN/AN/A
New York State Bar AssociationN/AN/A
School nameMajorDegreeGraduated
St John's University School of LawN/AJD - Juris Doctor2006
College of William and Mary, Marshall-Wythe School of LawGovernment and International AffairsBA - Bachelor of Arts2003