John Patrick O'NeilMedical Malpractice Attorney in Mayfield Heights, OH

About

John Patrick O'Neil is a distinguished equity partner at Elk & Elk Co., Ltd., where he has excelled since 2012 in the fields of medical malpractice and personal injury law. Based in Mayfield Heights, Ohio, John is renowned for his expertise in handling complex cases involving death and catastrophic injuries. His extensive legal career encompasses over 14 years at one of Ohio’s premier defense law firms, where he held significant leadership roles, including practice area chair and member of the management committee. Before advancing to the plaintiff's side, John gained invaluable experience as a prosecutor at the Dade County State Attorney's Office, where he honed his litigation skills. Throughout his career, he has successfully litigated more than 80 jury trials across diverse legal areas, such as medical malpractice, transportation, legal malpractice, and premises liability. His proficiency extends to both state and federal courts, with noteworthy arguments presented in the Eighth District Court of Appeals, Ohio Supreme Court, and the Sixth Circuit Court of Appeals. John's academic foundation includes an undergraduate degree from Miami University in Oxford, Ohio, followed by his Juris Doctor from John Marshall Law School in Chicago, Illinois. His commitment to client service and legal excellence drives his practice, ensuring that each client receives the highest level of advocacy and support. Outside of his professional life, John is a devoted family man, married with four children, reflecting his dedication to both his career and family values.

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