John De Massi

Bar Admission

New Jersey
U.S. District Court, District of NJ
Third Circuit Court of Appeals
United States Supreme Court


Rutgers University, BA Degree, Magna Cum Laude, Phi Beta Kappa 1971
Rutgers University, Doctor of Law (J.D.), 1974
Rutgers Law Review/ Editor

Specialized Practice Areas

Municipal Court (including DWI), Criminal Law, Land Use Law, Wills and Estates, Residential and Commercial Real Estate, Municipal Law

JOHN DE MASSI brings more than 40 years of experience to every case. His vast experience as an attorney encompasses cases at various levels of New Jersey’s legal system, including Superior Court cases in all but two of the state’s counties.

He has also represented clients in the following courts:

  • Municipal Courts
  • Federal District Courts
  • New Jersey Superior Court
  • New Jersey Supreme Court
  • New Jersey Appellate Division


As an attorney with Schiller & Pittenger, P.C., Mr. De Massi continues to offer top-quality legal service in a variety of matters. His practice is dedicated to criminal and municiple, real estate, estate planning, and zoning.

Mr. De Massi served in a variety of legal capacities before joining the firm. He started his career as a law clerk for the Hon. Francis X. Crahay, J.A.D. and then was appointed as an Assistant Union County Prosecutor. He took 50 jury trials to completion (including eight homicide cases) as the Supervisor of the Homicide and Sex Crimes Unit. He served in the Prosecutor’s Office for six years, from 1975 to 1982, before moving into private practice.

In the following years, Attorney De Massi practiced as a partner in Gasiorowski & De Massi. He proceeded to take various public positions before returning to private practice.

His subsequent experience involved service for various courts and agencies:

  • Roselle Municipal Court (1998-2003)
  • Roselle Redevelopment Agency
  • Roselle Board of Adjustment
  • Five Union County Municipalities (as a public defender)
  • Urban Enterprise Zone (as a counselor)


Mr. De Massi continued to membership in the District XII Ethics Committee and District XII Union County Fee Arbitration Committee. Both of these appointments lasted for four years. At this time, he is a master of the Richard J. Hughes Inns of Court.

He graduated Magna Cum Laude from Rutgers University in 1971, where he was a member of Phi Beta Kappa, before moving on to Rutgers Law School, where he earned his Doctor of Law.