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William Joseph Leininger

also known as Bill Leininger

About me

Mr. Leininger graduated Fordham Law School in 1974 with a rank of #1 in the entire Evening Division. He has been practicing law for over 40 years - the last 35 years concentrating on Divorce and Custody Matters.  100% of Mr. leininger's practice is devoted solely to Divorce, Separation, Custody, Family Court, Divorce mediation, Parental Coordination and Collaborative Divorce.  Mr. Leininger has appeared on national TV and radio shows, including the Phil Donohue Show, Sallie Jessie Raphael Show, CBS Morning Show, the Today Show on the NBC network, etc.


Mr. Leininger is a member in good standing of the New York Bar, the New Jersey Bar, and the Florida Bar, and is also admitted to practice before the Supreme Court of the United States. He is a member of the Family Law Sections of the New York State Bar Association, the New Jersey State Bar Association and the Florida Bar Association. Mr. Leininger is also a certified Divorce Mediator.


Photos and videos

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Practice areas


  1. Divorce: 91%
  2. Mediation: 9%


Payment types:

Cash, Check, Credit card

Attorney endorsements

1 total 

Are you an attorney? Endorse this lawyer

  • Lainie R. Fastman

    I endorse this lawyer. Mr. Leininger is a knowledgeable, diligent, professional, who never fails to consider the welfare of his clients. I have had the pleasure of working with him on a few cases and I recommend him without reservation.


    Lainie Fastman Estate planning Attorney
    Relationship: Other

Contact info

William J. Leininger, PC

34 Dumont Ave
Staten Island, NY, 10305-1450


FLMember in Good Standing198806/19/2016
NYDue to reregister within 30 days of birthday 197507/10/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Preeminent 4.8 out of 5Martindale-Hubbell2015
Preeminent 4.8 out of 5Martindale-Hubbell2014
Certified Divorce MediatorFlorida Supreme Court2013
Graduated #1 in Evening DivisionFordham University School of Law1975
Work experience
TitleCompany nameDuration
OwnerWilliam J. Leininger, PC1981 - Present
Association namePosition nameDuration
New York Latin Liturgy AssociationPresident1989 - Present
Latin Liturgy Association of AmericaPresident2003 - 2009
School nameMajorDegreeGraduated
Fordham University School of LawLawJD - Juris Doctor1975
St Francis CollegeN/ABA - Bachelor of Arts1972