With extensive litigation experience and recognition as a Super Lawyers Rising Stars honoree, Boris brings his advocacy and sharp negotiation skills when representing individuals and businesses of all sizes in complex disputes and litigations in both state and federal courts.

Boris Peyzner is a Partner in Mandelbaum Barrett PC’s Litigation Practice and Construction Law Groups.

Boris has extensive experience as a litigator, both trying and arbitrating cases, as well as in negotiating settlements for individuals and businesses of all sizes.  Boris is highly skilled in complex negotiations involving both legal and strategic business considerations.

He represents entrepreneurs, closely held companies, corporations, and partnerships in resolving business dispute, including breach of contract, fraud, negligent misrepresentation, unfair competition, breach of restrictive covenants, breach of fiduciary duty, and tortious interference with contract. He regularly litigates matters throughout state courts at both the trial and appellate level throughout New Jersey and New York, as well as in federal courts nationwide.

Boris is also committed in helping construction firms through the construction project lifecycle. He represents companies of all sizes from large national contractors to small “mom and pop” businesses.  Boris has extensive experience negotiating and drafting construction contracts, resolving issues related to, among other things, construction defects, delays, liens, wrongful termination, and contractual breaches.

His reputation is as a litigator who quickly assesses issues in a case and works towards a swift resolution. Boris’s dedication to his clients and his ability to resolve complex legal issues, swiftly and in the most cost-effective manner is one of his most sought-after skills.  He also regularly writes and speaks on “hot topics” in commercial and construction issues.  Boris is fluent in Russian.

In his free time, Boris enjoys the beach with his family, rooting for the Devils, as well as playing and watching hockey.

Boris has been recognized by Super Lawyers to their Rising Stars list from 2014-2023.

Areas of Practice —

Admissions —

  • New Jersey
  • New York
  • District of New Jersey
  • Southern District of New York
  • Third Circuit Court of Appeals

Education —

  • Temple University, Beasley School of Law, J.D.
  • Rutgers University, B.S.

Awards —

  • Law360 Construction Group of the Year 2025
  • Super Lawyers Rising Stars list, 2014-2022.

Professional Affiliations —

  • Assistant Coach, Jersey Shore Wildcats/Americans (2023-2026)

Publications —

Speaking Engagements —

  • NJSBA Construction Law Section CLE Meeting 2026

Published Decisions —

  • Successfully defended Morgan Stanley from a claim that it owed a duty to a non-customer to detect alleged fraud. Wolens v. Morgan Stanley, 449 N.J. Super 1 (App. Div. 2017).