Mr. O’Brien is an experienced trial attorney with numerous successful jury verdicts throughout the New York State Supreme Courts and New York City Civil Courts. He has successfully represented institutional and individual clients in complex civil litigation in a broad range of substantive areas, including general negligence, medical malpractice, wrongful death, toxic torts, real estate, constitutional law, trademark and copyright infringement, securities fraud, and business disputes. In addition to trial work, Mr. O’Brien’s courtroom experience also includes successful appeals in state appellate courts.

Prior to founding O’Brien Law Firm, PLLC, Mr. O’Brien was in-house counsel for Nationwide Mutual Insurance Company in their New York City office, and before that he was an associate attorney with McCarthy, Small & Associates, P.C., also in New York, NY. During law school, Mr. O’Brien worked for a sole practitioner in Boston, MA, where he gained invaluable experience not only in substantive areas of law, but also with the day-to-day management of a law practice.