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Mark L. Fleder



Mark Fleder brings decades of construction litigation experience to bear in representing general contractors, specialty sub-contractors, suppliers, design professionals and public and private owners in the full range of construction disputes. Through his extensive relationships with architects, engineers, accountants and other experts, Mark has developed a comprehensive knowledge of the complex technical details involved in disputes over defective construction, warranties and design flaws, as well as payment issues pertaining to claims for construction defects, extras, delays, damages and back charges.

Mark also provides counsel in matters involving complicated insurance and defense problems stemming from construction projects such as power plants, prisons, casinos and hospitals. He is experienced in all aspects of litigation, from trials to appeals, arbitrations and mediations.

In addition, Mark handles OSHA cases and assists with the coordination of clients’ responses in accident and catastrophe situations. He served as part of the public owner’s project teams during the construction of major New Jersey projects, including a $400 million prison and a $100 million mental hospital. More recently, he has advised financing institutions and owners on construction defect and contractor default issues.

Mark served as a law secretary to the Honorable Joseph H. Stamler, New Jersey Superior Court, Chancery Division (1969-1970) and as a legal assistant to Administrative Director of the Courts (1970) for a special confidential assignment for the Governor. For more than 10 years, he was a faculty member/speaker for the National Practicing Law Institute’s Construction Law Program on the subject of delay claims and resulting damages. He routinely speaks as an expert on construction-related topics to various groups including contractors, owners, designers, insurers, contractor associations and accountants.


Representative Experience

  • Representation of the Associated Construction Contractors of New Jersey (previously the Associated General Contractors of New Jersey) for the past 35 years
  • Representation of the New Jersey Construction Industry Advancement Program for its initial 30 years
  • Representation of contractor against the State of New Jersey in the NJ Supreme Court case that abolished Sovereign Immunity in contract cases
  • Representation of engineering firm in court case that changed New Jersey law and held design professionals liable directly to contractors for malpractice claims
  • Representation of various contractors advancing major delay claims leading to negotiated settlements in many cases
  • Representation of national design firm in multi-party litigation defending substantial design deficiency claims
  • Representation of prime contractor against public owner for delay and extra work claims resulting from default of co-prime contractor
  • Representation of general contractor in five consolidated suits relating to a substantial public project
  • Representation of clients involved in family construction businesses, including multi-generational issues
  • Representation of a national engineering firm in federal court litigation pertaining to large public college building with design deficiencies
  • Consultations on insurance-coverage situations for defective construction work and defense arrangements


Professional and Community Affiliations

  • Past Chairman, New Jersey State Bar Association’s Section on Public Contract Law
  • Member, American Bar Association’s Forum Committee on the Construction Industry, Public Contract Law, and Litigation Sections
  • New Jersey State Bar Association
  • Essex County Bar Association
  • New Jersey Trial Lawyers Association
  • American Bar Association


  • Speaker, "The Palisades Decision: Yay or Nay?” New Jersey State Bar Association (NJSBA) Construction Law Section program; New Brunswick, NJ (January 2018)
  • Speaker, “Risks, Rewards and Consequences of DBE, WBE and MBE Programs” American Institute of Certified Public Accountants (AICPA) National Construction Industry Conference; Las Vegas, NV (December 2013)
  • Speaker, “How to Win a Construction Claim : Proving Damages in Construction Litigation” American Institute of Certified Public Accountants (AICPA) National Construction Industry Conference; Las Vegas, NV (December 2012)
  • Speaker, “When to Call in the Cavalry: The Construction Accountant and The Construction Lawyer,” American Institute of Certified Public Accountants (AICPA) National Construction Industry Conference; Las Vegas, Nevada (December 2011)
  • Seminar Speaker, National Construction Law Superconference (2005 and 2006)

News & Insights


Speaking Engagements


Best Lawyers in America (2016-2020)

  • Construction Law
  • Construction Litigation

"New Jersey's Top Rated Lawyers," Inside Jersey magazine (2012)

New Jersey Super Lawyers (2012-2019)

Best Lawyers Award Badge


  • Honorable Joseph H. Stamler, New Jersey Superior Court, Chancery Division (1969-1970)


Rutgers University (J.D., 1969)

Princeton University (A.B., 1966)


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