• About Us
• Attorneys
• Practice Areas
  • Bankruptcy, Appellate Advocacy, Post-Trial Practice
  • Casualty
  • Data Privacy & Cyber Security
  • Employment Law, Municipal & Public Entity
  • Healthcare & Catastrophic & Excess Loss
  • Construction Accident / Construction Defect
  • Professional Liability
  • Toxic Tort, Mass Tort, Environmental and Products Liability
  • Transportation / Trucking
• News
• Diversity & Inclusion
• Contact
  • Delaware
  • Maryland / Washington D.C.
  • New Jersey
  • New York City
  • Philadelphia
  • Pittsburgh
  • Westchester County
• Payments

Practice Areas

Our firm’s practice areas cover a broad range of expertise. Please select from the practice areas below to learn more about our capabilities.

• Casualty
• Professional Liability
• Toxic Tort, Mass Tort, Environmental and Products Liability
• Construction Accident / Construction Defect
• Employment Law, Municipal & Public Entity
• Bankruptcy, Appellate Advocacy, Post-Trial Practice
• Healthcare & Catastrophic & Excess Loss
• Transportation / Trucking
• Data Privacy & Cyber Security

Marks, O’Neill, O’Brien, Doherty & Kelly

MARKS, O’NEILL, O’BRIEN, DOHERTY & KELLY has been at the forefront of defense litigation for over a quarter of a century representing the interests of corporations, carriers and individual clients.