Jonathan D. Marcus

Jon Marcus is an accomplished litigator and trial lawyer and a trusted advisor to some of the region’s largest employers. For more than 20 years, Jon has successfully represented clients in high stakes litigation matters in both federal and state courts. He concentrates his practice on complex commercial litigation and disputes and has delivered outstanding results in cases involving commercial contract claims, business torts, employment claims, restrictive covenants, and artificial intelligence data centers. Jon has also prevailed on behalf of residents and corporations opposing large real estate developments.

Representative Matters

• Won Pennsylvania Superior Court appeal establishing that a claim of breach of fiduciary duty by a former robotics company CEO against its largest shareholder and others was barred by collateral estoppel
• Successfully resolved breach of fiduciary duty and patent infringement claims by a Texas company against one of the region’s largest employers
• Won defense verdict as lead trial counsel in a federal court jury trial involving discrimination claims against one of the region’s largest employers
• Won summary judgment in wide-ranging litigation brought by independent retailers asserting federal and state law claims
• Successfully opposed a significant real estate development on behalf of 100 residential clients
• Successfully resolved FLSA and state wage and hour claims against a large regional grocer
• Won bench trial as lead counsel against 9 plaintiffs alleging violations of the PHRA
• Won summary judgment on all federal claims brought by a former Division I athletic coach against a University
• Won summary judgment on all claims brought by a police officer against his employer
• Successfully resolved a tortious interference with contract claim by a mill services company against a Russian steelmaking conglomerate

Prior to joining Marcus & Shapira in 2012, Jon worked for several years in New York City at the largest law firm in the country devoted solely to business litigation. Jon then joined a global full-service law firm in Washington, D.C., where he gained additional experience before becoming a Trial Attorney for the United States Department of Labor. As a member of a task force hired to tackle a massive backlog of safety violations, Jon negotiated favorable settlements of nearly 150 cases within eight months and successfully argued at trial that a monetary penalty assessed against a large mine operator should be multiplied eightfold.

Jon graduated from the New York University School of Law in 2004, Boston University School of Communications in 1996 (M.S. Broadcast Journalism), and the University of Michigan in 1994 (B.A. English Literature). After earning his master’s degree, Jon spent four years working as a television sports and news anchor/reporter in Montana and Virginia.