Sean O’Neill

Sean was born and raised in Carlsbad, California. He graduated from the University of Arizona and Pepperdine University School of Law. During law school, Sean gained valuable experience through clerkships with the United States Senate Judiciary Committee, the Los Angeles County District Attorney’s Office, and several high-profile litigation firms in Los Angeles. He was also selected to serve as a special editor for the Harvard Journal of Law & Public Policy.

After law school, Sean served as corporate counsel at United States Steel Corporation in Pittsburgh, Pennsylvania, where he reported directly to the General Counsel. In this role, he assisted with the company’s international trade enforcement litigation, public policy engagement, and advised on high-priority corporate matters. Sean then returned to California to work as a trial lawyer at a medical malpractice defense firm, where he defended doctors and hospitals. His time at an insurance defense firm provided him with invaluable insights into how insurance companies value claims and defend medical providers.

In 2017, Sean transitioned to representing victims of medical negligence and elder neglect at a boutique plaintiff’s personal injury firm in West Los Angeles. He joined Stalwart Law Group in 2020 to help launch the firm’s elder abuse and medical malpractice team. Since then, Sean and the firm have achieved significant success in securing justice for victims of negligence and neglect. Over his career, Sean has helped secure more than $200 million in recoveries for his clients. His dedication to his clients and relentless pursuit of justice are evident in the exceptional results he consistently achieves.