John has been in practice for over 20 years. He received his J.D. from Fordham Law School in Manhattan in 1996 and is a United States Navy Veteran.


  • The New Jersey State Bar Association
  • The Sussex County Bar Association
  • The New Jersey Association for Justice
  • Sussex County Public Defender Pool Attorney
  • The Knights of Columbus in Sparta

John Breslin is actively involved in his community, participating in many charity and youth sports events and serving as a public defender for Sussex County.

As your attorney, he specializes in matters of civil litigation, personal injury, and municipal court.

Law Classes and Seminars Attended:

  • NJAJ Boardwalk Seminar Atlantic City April 2016 - 
    • Criminal Law as to Bail Reform
    • Speedy Trial and Excludable Time
    • DWI Recent Cases and Practice Tips
    • Expungement Reform
    • Immigration Status
  • DWI Institute-Drugged Driving - 2016
  • Civil Trial Advocacy - 2015
  • Hot Topics in Criminal Law - 2015
  • Municipal Court College - 2015
  • Handling Drug, DWI & Serious Motor Vehicle Cases in Municipal Court - 2015
  • Criminal AL Law College - 2015

Call today for a free consultation - 973.983.7020 - conveniently located in both Sparta and Rockaway Township, New Jersey. Oller and Breslin LLC are Municipal Court, Civil and Commercial Litigation, Family Law and Estate Planning, Residential and Commercial Real Estate, Condominium Attorneys