John F. O’Reilly

John F. O’Reilly is Chairman and CEO of O’Reilly Law Group in Las Vegas and has more than four decades of litigation experience. His practice includes complex business disputes, personal injury matters, gaming issues, construction and real estate litigation, healthcare conflicts, insurance disputes, corporate matters, and contested estates. He has handled mass tort, catastrophic loss, regulatory enforcement, and internal investigation matters, giving him broad experience with high-stakes civil and regulatory problems.

O’Reilly earned a B.S. and a J.D. from St. Louis University and later received an M.B.A. from the University of Nevada, Las Vegas. His education in law and business supports a practice that frequently combines litigation with financial, corporate, and regulatory questions. Earlier professional work in audit and tax with Arthur Andersen and Ernst & Ernst added practical experience with accounting and business operations before he developed a long career in private practice and public service.

O’Reilly has served as Chairman of the Nevada Gaming Commission and has held senior leadership positions in legal and business organizations. His background includes work as a chief executive and board member of public companies, experience that informs disputes involving governance, commercial relationships, regulated industries, and financial decision-making. In litigation, he has addressed complex matters involving businesses, injured individuals, estates, insurers, healthcare interests, real estate participants, and parties facing government or regulatory scrutiny.

John F. O’Reilly combines trial experience with business and regulatory leadership developed over a long Nevada career. His service in gaming regulation and corporate management gives him additional perspective on disputes where legal strategy intersects with operations, governance, or regulatory obligations. He represents clients in matters that can involve substantial financial exposure, complex evidence, and multiple legal issues. His work is directed toward careful case assessment, practical advocacy, and resolution of demanding civil disputes.

Law Office Affiliations

• Attorney, O’Reilly Law Group, LLC
• Member, State Bar of Nevada
• Past President, American Board of Trial Advocates (ABOTA), Las Vegas
• Past President, Clark County Bar Association
• Chairman, Nevada Gaming Commission

Licensed State

• Nevada

Awards & Badges