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About me

James J. Sexton was born in New Bedford, Massachusetts and raised in Rockland County, New York.  In additional to his legal practice, James has taught undergraduate courses in Conflict Resolution, Ethics, Propaganda and Public Speaking at a number of colleges and universities including NYU and Ramapo College of New Jersey.  His research, essays and poetry have been published in such varied media as People Magazine, ETC: The Journal of General Semantics and Tricycle : The Buddhist Quarterly.  


In his limited free time is an active mixed martial artist and began studying Okinawan Goju Ryu karate at the age of nine.  He currently trains in Brazilian Jiu Jitsu (Marcelo Garcia Academy) and frequently competes in amateur grappling and mixed martial arts (MMA) fighting. 


James has two teenage sons and resides in Manhattan.


Photos and videos

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Practice areas


  1. Divorce: 50%
  2. Child Custody: 40%
  3. Prenuptials: 5%
  4. Child Support: 5%



Retainer (always)

Payment types:

Cash, Check, Credit card

Attorney endorsements

14 total 

Are you an attorney? Endorse this lawyer

  • Anita Mignone-Lazaro

    Jim Sexton is one of the most aggressive, well prepared, zealous advocates that I have encountered in the Courtroom. As a fellow attorney, I can also say that Jim will always demonstrate the highest level of ethics and decorum even while fighting tooth and nail to advance his client’s goal. For these reasons, I endorse him without reservation.


    Anita Mignone-Lazaro Immigration Attorney
    Relationship: Opposing Counsel on matter

  • Alvin Leon Spitzer

    I have known Jim since he was an associate at one of the major firms in Rockland. He is one of the most able and competent lawyers I know. He is very well versed in the areas of law which make up his practice, is very professional and always has his client's interests as his major priority.


    Alvin Spitzer Criminal defense Attorney
    Relationship: Fellow lawyer in community

Contact info

255 W 36th Street
Suite 1104
New York, NY, 10018



NYCurrently registered 200103/07/2016
NJAdministrative - Not authorized to practice200106/25/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top LawyerNew York Magazine2015
Top 10 New Jersey Matrimonial and Divorce Lawyer under 45Ten Leaders2009
"Forty Under Forty"Rockland Business Association2003
Work experience
TitleCompany nameDuration
Founding PartnerLaw Offices of James J. Sexton, PC2001 - Present
Association namePosition nameDuration
Association of Family and Conciliation CourtsMember2004 - Present
Rockland County Bar AssociationMember2001 - Present
New York State Bar Association, Family Law SectionMember2001 - Present
Law Guardian PanelMember2001 - Present
Legal cases
Case nameOutcome
M.K. v. A.K.Record setting counsel fee award.
S.C. v. H.B.Motion for additional disclosure granted.
Belle v. DeMiliaPetitioner/Mother Entitled to Reimbursement
See all legal cases 
Publication nameTitleDate
ETC: The Journal of General SemanticsMetaphor and Mortality : The Semantics of Death and Dying2000
School nameMajorDegreeGraduated
Fordham University School of LawLawJD - Juris Doctor2001
New York UniversityN/AMA - Masters1997
Speaking engagements
Conference nameTitleDate
Rockland County Bar Association, Continuing Legal Education CommitteeYou Be The Judge : Domestic Violence in Family Court2016
Rockland Community College (RCC)Public Speaking2007
Ramapo College of New JerseyIssues & Ethics2006
St. Thomas Aquinas College (STAC)Constitutional Issues in Family Law2005
New York UniversityVarious Undergraduate Courses1999