Mr. McMahon is the immediate past Chair of the firm’s Business & Commercial Litigation Department, a position he held for 15 years, and was a long-standing member of the firm’s Executive Committee. His litigation practice encompasses a wide range of complex corporate and commercial disputes, including securities litigation, merger and acquisition disputes, partnership disputes, intra-corporate and shareholder derivative disputes, and complex contract disputes. Mr. McMahon has litigated and tried jury and non-jury cases in the state and federal courts throughout the regional metropolitan area. He has played the leading role in numerous large class actions, enforcement proceedings with federal and state regulatory agencies, and complex adversary proceedings in the United States Bankruptcy Courts. Mr. McMahon has been the primary architect of numerous complex and multifaceted settlements involving parallel and related proceedings pending in several different courts and regulatory agencies. Mr. McMahon has taught numerous seminars on various complex commercial and securities litigation subjects for the New Jersey Institute for Continuing Legal Education, including “Recent Developments in Class Actions and Shareholder Derivative Suits.” He is consistently recognized as a leading litigator by New Jersey Super Lawyers and Best Lawyers® publications. He was recently selected as the nominee of the United States District Judges for the District of New Jersey to the Lawyers Advisory Committee for the Third Judicial Circuit.
Seton Hall University School of Law|Colgate University
J.D., cum laude|B.A.
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Law secretary to the Honorable Vincent P. Biunno, United States District Judge for the District of New Jersey, 1977-1979
State of New Jersey|United States District Court for the District of New Jersey|United States Court of Appeals for the Third Circuit|United States Court of Appeals for the Seventh Circuit|United States Court of Appeals for the Ninth Circuit|Supreme Court of the United States
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Listed in Chambers USA Guide to America’s Leading Lawyers for Business, Litigation: General Commercial
Listed in Best Lawyers®, Commercial Litigation; Litigation – Antitrust; Litigation – Bankruptcy; Litigation – Securities
Named Newark, NJ “Lawyer of the Year” in Litigation – Antitrust, 2013 & 2020
Named Newark, NJ “Lawyer of the Year” in Litigation – Securities, 2015
Selected to the New Jersey Super Lawyers list, Business Litigation
Listed as a “Local Litigation Star” by Benchmark Litigation
AV® Peer Review Rated by Martindale-Hubbell
Named to the Lawyers Advisory Council for the Third Judicial Circuit, 2009
U.S. Court of Appeals for the Third Circuit
Lawyers Advisory Committee
Litigation Counsel of America
Senior Fellow
Lifland Inn of Court
Master
New Jersey State Bar Association
Committee on Business & Commercial Litigation
Committee on Class Action Lawsuits
Seton Hall University School of Law
Lecturer, Legal Research and Writing, 1981-1982
American Judicature Society
American Bar Association
