D. Colby Addison

D. Colby Addison, the founder of Addison Law Firm in Oklahoma City, focuses his legal practice on civil rights, personal injury, tribal law, employment disputes, and complex federal litigation. He is admitted to practice before the Western, Northern, and Eastern Districts of Oklahoma, as well as the U.S. Court of Appeals for the Tenth Circuit.

Mr. Addison's judicial experience as a Tribal Supreme Court Justice enhances his expertise in sovereignty issues, intergovernmental relations, and the intersection of tribal and federal law. Previously, he served as an Administrative Law Judge for the Oklahoma Civil Service Division, adjudicating employment disputes between state agencies and employees. This role informs his current plaintiff-side employment legal practice.

Throughout his career, Mr. Addison has managed thousands of disputes and successfully recovered millions for families through settlements and verdicts. He has certified numerous classes of litigation and represented state agencies managing portfolios worth hundreds of millions of dollars. His government service includes advising state and tribal legislative bodies on policy and lawmaking.

Mr. Addison earned his Juris Doctor from the University of Oklahoma College of Law, where he contributed to the Oklahoma Law Review. He holds a Bachelor of Science from the University of Oklahoma. Recognized by Super Lawyers, he has also taught Continuing Legal Education courses and serves on the board of a Native CDFI-aligned lending institution.

His practice areas are diverse, including Section 1983 civil rights claims, excessive force and jail-conditions cases, trucking and catastrophic-injury litigation, wrongful death, tribal gaming regulation, general outside counsel services, and federal appellate advocacy.