David has also litigated medical and dental malpractice cases, insurance claims, contract disputes, and domestic matters. He has represented clients before the Oklahoma Multi-County Grand Jury, appeared in more than twenty different counties and numerous municipal courts in Oklahoma. He is licensed to practice in all state and municipal courts in Oklahoma, and the United States District Courts for the Northern, Eastern and Western Districts of Oklahoma. David is a member of the Oklahoma Criminal Defense Lawyers Association, the Oklahoma and American Associations for Justice, and the Tulsa County, Oklahoma and American Bar Associations.