Marvin J. Hammerman

Marvin J. Hammerman


Office: 973-227-1514
Direct: 862-214-3285                 


Name *

Areas of Practice

Civil Litigation
Criminal and Traffic Defense
Personal Injury Litigation
Automotive Law
Consumer Fraud Litigation
Business Law and Corporate Transactions
Police and Municipality Defense
Insurance Law


Rutgers School of Law - Newark, 2013
Montclair State University - 2010
Universidad Antonio de Nebrija - 2008

Bar Admissions

State of New Jersey
District of New Jersey


New Jersey Bar Association
Essex County Bar Association
American Bar Association New Jersey Association of Professional Mediators

Attorney Biography | Marvin J. Hammerman

A New Jersey Civil Litigation and Criminal Defense Attorney 

      Marvin J. Hammerman is a New Jersey-native civil and criminal litigation attorney, professional family law attorney/mediator, certified automotive technician and managing partner of Hammerman Rosen LLP. Mr. Hammerman focuses his area of practice on complex litigation matters, personal injury law and automotive consumer fraud litigation, in addition to criminal defense and traffic violations in municipal and superior court.

       Mr. Hammerman is a Former Law Clerk and Associate of the insurance defense law firm, Dwyer Connell & Lisbona. He was mentored by highly-regarded New Jersey trial attorneys and gained valuable experience handling various types of civil litigation, including insurance coverage disputes, automobile negligence, consumer fraud litigation, automobile accident and personal injury law, municipality defense, premises liability and police liability. Mr. Hammerman’s experience as an insurance defense attorney gives him a strong understanding of how to approach matters from the Plaintiff's side. His additional legal experience includes medical malpractice cases, corporate formation and business law, landlord-tenant and real estate transactions, shareholder disputes, arbitration, family law, mediation, wills, trusts and estates, and appeals.

       Mr. Hammerman is a graduate of Rutgers University School of Law - Newark.  During law school he interned for the State of New Jersey, Office of the Attorney General, where he worked with the professional licensing boards and was exposed to government and regulatory affairs.  Mr. Hammerman volunteered as a mediator for the Office of the Attorney General, Division of Consumer Affairs, where he resolved numerous complaints against local businesses with values of claims ranging up to $100,000.00. He has since completed further extensive training in cognitive psychology and mediation, is a professional family law mediator, and is a member of the New Jersey Association of Professional Mediators.

        Mr. Hammerman has negotiated settlements in personal injury and civil litigation cases totaling more than $1,000,000.00 and continuously takes on and successfully resolves cases from referring attorneys that find them not profitable enough, or too difficult, to pursue.  Mr. Hammerman is highly committed to assisting individuals, families, and small businesses with resolving their legal problems, with a focus on avoiding costly litigation by first engaging in alternate dispute resolution. Mr. Hammerman was inspired by his father, a respected primary care physician, to create a law firm that treats its clients like a "concierge" practice, giving personal attention while maintaining an appreciation for financial considerations.

Read all testimonials