Mark D. Villanueva

Mark Villanueva


Mark Villanueva represents clients - ranging from individuals to small businesses to Fortune 10 companies - in a broad array of complex commercial litigation matters. Mark litigates in the trial and appellate levels of state and federal courts, as well as before arbitration tribunals. He has worked with companies in numerous industries, including pharmaceutical, insurance, banking, energy, and health care. Mark has litigated complex insurance and reinsurance coverage actions, product liability claims, commercial contract disputes, intellectual property claims and consumer class actions.

Mark has significant experience representing clients regarding insurance coverage issues, including claims related to directors and officers liability, professional liability, employment practices liability and mass torts. In addition, Mark represents and counsels insurers, cedents and reinsurers on reinsurance claims and coverage across multiple lines of business.

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Representative Matters

  • represents a national pharmacy chain in defense of suits by local governments and third-party payors to recover costs alleged to have been caused by the shipment and dispensing of prescription opioids
  • obtained complete dismissal of class action; Knudsen, et al. v. Customers Bank, et al., Cause No. DV 16-977 (Mont. 2020)
  • obtained complete defense verdict as first chair trial counsel in the U.S. District Court for the Eastern District of Pennsylvania involving commercial claims by a national railway company; Norfolk Southern Railway Company v. G.W.S.I., Inc., Civ. Action No. 16-2094
  • represented health insurers in insurance coverage litigation arising out of antitrust class action claims
  • represented cedents in complex life, finite risk, and captive reinsurance disputes
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Bar Admissions
  • Pennsylvania
  • New Jersey
Court Admissions
  • U.S. Court of Appeals for the Third Circuit
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. District Court for the District of New Jersey
  • J.D., magna cum laude, The Catholic University of America Columbus School of Law
  • B.A., Bucknell University

  • Fellow, Academy of Advocacy of Temple University
  • Member, Moorestown Township Board of Education
  • Pennsylvania Bar Association
  • Philadelphia Bar Association
  • Stradley Ronon Diversity Committee
  • Stradley Ronon Hiring Committee


  • The Legal Intelligencer, Lawyers on the Fast Track
  • Pennsylvania Super Lawyers, Rising Star
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