John J. Hamill has been lead counsel in a wide range of complex commercial litigation matters in numerous venues, including in areas such as antitrust, healthcare, insurance, sports, telecommunications, professional responsibility, energy, and numerous types of general business-to-business litigation, including class actions. These include cases tried to judgment, appealed, class actions, and many resolved favorably by settlement. Some sample engagements include:

Examples of engagements where he has lead litigation teams include:

  • Represented a leading health insurance company in dozens of significant disputes involving payment disputes, indemnity issues, and class claims
  • Represented property and casualty insurer in federal antitrust action concerning bail bond rates
  • Represented Major League Soccer team in bench trial dispute over stadium construction
  • Represented gaming organization in dispute over state tax legislation in Pennsylvania Supreme Court 
  • Represented investor of gaming organization in First Amendment challenge to campaign contribution ban in Third Circuit
  • Represented a leading health insurance organization in a federal antitrust action under the Sherman Act
  • Representing a university in litigation concerning concussion injuries in sports
  • Represented a professional sports team in an ownership controversy
  • Represented pharmacy company in antitrust action related to alleged pay for delay scheme
  • Represented a professional sports team in various business litigation matters
  • Represented a prominent power utility in multiple class actions, appeals, and regulatory matters in state and federal courts and Supreme Court of Illinois
  • Represented a major energy company in a significant tax dispute
  • Represented a hospital system in an antitrust dispute
  • Represented a long distance carrier in RICO litigation
  • Represented a prominent power utility in unfair competition class actions
  • Represented several leading health insurance companies in a complex arbitration with a transportation company