Recognized in Best Lawyers since 2027 
Marc Zucker is a commercial litigator and appellate advocate with more than four decades of experience representing businesses and individuals in complex legal disputes throughout Pennsylvania and New Jersey. At Weir LLP, his practice includes complex commercial litigation in state and federal courts, federal and state appellate practice and alternative dispute resolution.
In addition to his litigation practice, Marc Zucker serves as a neutral arbitrator and private mediator in commercial and consumer matters. He is a neutral arbitrator and mediator for the Commercial and Consumer Panels of the American Arbitration Association, an arbitrator for the Financial Industry Regulatory Authority (FINRA), an arbitrator for the Court of Common Pleas of Philadelphia County, and an arbitrator and mediator for the U.S. District Court for the Eastern District of Pennsylvania.
Marc Zucker has tried, arbitrated, and mediated disputes involving contracts, corporate governance, construction, real estate, banking, insurance, directors' and officers' liability, distributorships, bankruptcy, trade secrets, Uniform Commercial Code disputes, employment matters, business torts, class actions, derivative litigation, fiduciary litigation, professional liability claims, and disputes among principals of closely held businesses.
In 2023, Marc Zucker served as Chancellor of the Philadelphia Bar Association. He also was appointed in 2024 by the Pennsylvania Supreme Court to its Disciplinary Board to serve a three-year term as a Hearing Committee Member in the District 1 disciplinary district. He co-chairs the ADR Committee of the American Bar Association’s Litigation Section and is a member of its Federal Practice Task Force, after previously having co-chaired its Commercial & Business Litigation Committee and Corporate Counsel Committee.
Marc Zucker is also a longtime member of the volunteer panel of Commerce Program judges pro tempore assisting the Court of Common Pleas of Philadelphia County and serves as a mediator for the Court’s Eviction Diversion Program. In addition, he has served as a court-appointed receiver in commercial matters.
Clients and colleagues value Marc Zucker for his practical approach, responsiveness, and careful attention to complex legal and business issues.
