Robert W. Tiedeken graduated from the University of Wyoming College of Law in 1981. He is a former President of the Wyoming Trial Lawyers Association, and served as a Governor to the American Association for Justice. He is listed in The Best Lawyers in America and Mountain States Super Lawyers. He is a member of the Million Dollar Advocates Forum, which is limited to attorneys who have achieved awards or settlements in excess of $1,000,000 for an individual client. He is also a member of the invitation only Association of Catastrophic Injury Attorneys, and Litigation Counsel of America.

He is admitted to practice in all courts in Wyoming, the Tenth Circuit Court of Appeals, and has litigated cases in many jurisdictions outside of Wyoming. His practice concentrates on medical negligence, catastrophic injury, wrongful death, defective products, premises liability, trucking and automobile accidents, and work place safety.