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Jeffrey P. Mongiello



Jeffrey Mongiello focuses his practice on commercial litigation and white collar criminal defense in state and federal courts. He also has extensive experience handling appellate litigation.

Prior to joining Connell Foley, Jeff served as a Deputy Attorney General in the Appellate Bureau of the New Jersey Attorney General’s Office – Division of Criminal Justice, where he represented the State before the Appellate Division and Supreme Court on matters of statewide importance. In that capacity, he successfully defended New Jersey’s judicial recall statute, which authorizes retired judges over the age of 70 to temporarily return to service, against a constitutional challenge in the Supreme Court. He received the 2015 Attorney General’s Award for Excellence in Trial Litigation for his role in a successful public corruption prosecution by twice securing reversal of the trial court’s rulings on interlocutory appeals, including once on an emergent basis during trial to prevent the court from issuing its proposed jury charge.

During law school, Jeff participated in Seton Hall Law School’s Impact Litigation Clinic, where he briefed and argued an appeal before the Second Circuit and obtained reversal of the District Court’s order on behalf of his client.

Jeff completed clerkships with the Honorable Anne M. Patterson of the New Jersey Supreme Court and the Honorable Mary L. Cooper of the United States District Court for the District of New Jersey.

The New Jersey Supreme Court has appointed Jeff to serve as a member of the District VI (Hudson County) Ethics Committee.



  • Drafted a successful Petition for Certification to the New Jersey Supreme Court, convincing the Court to review a published decision by the Appellate Division that had allowed the plaintiff to pursue claims under New Jersey’s Law Against Discrimination against our client.
  • Drafted brief in insurance coverage dispute where the New York Appellate Division affirmed a declaratory judgment, entered after a bench trial, that our client was entitled to reimbursement in the amount of $950,000 plus interest.
  • Successfully moved before the New Jersey Appellate Division to dismiss an appeal as improvidently filed, persuading the Appellate Division that the trial court’s order remanding the matter back to a municipal board was not a final appealable judgment pursuant to Rule 2:2-3.


State v. Buckner, 223 N.J. 1 (2015) and 437 N.J. Super. 8 (App. Div. 2014)

State v. Olivero, 221 N.J. 632 (2015)

Caswell v. Green, 424 F. App’x 44 (2d Cir. 2011)


Professional and Community Affiliations

District VI (Hudson County) Ethics Committee

John C. Lifland American Inn of Court

Hudson County Bar Association

New Jersey State Bar Association


  • Hon. Mary L. Cooper, United State District Court for the District of New Jersey 
  • Hon. Anne M. Patterson, New Jersey Supreme Court


Seton Hall University School of Law (J.D., magna cum laude, 2011; Managing Editor, Seton Hall Law Review; Order of the Coif)

University of Maryland (M.P.P., 2006)

University of Maryland (B,A., 2005)


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