Attorney David W. Lee of Lee Law Center, P.C., served as Chief of the Criminal and Federal Divisions of the Oklahoma Attorney General's Office for three Attorneys General: Jan Eric Cartwright; Michael C. Turpen; and Robert H. Henry. David also was an Assistant United States Attorney for the Western District of Oklahoma, and an Assistant District Attorney in Washington and Oklahoma Counties. He was also an Assistant Public Defender in Oklahoma County.

David is a regular lecturer for the National College of District Attorneys, and in 2002 received that organization's Distinguished Faculty Member Award. He was the recipient of the National College's Lecturer of Merit Award in 1992. While in the Oklahoma Attorney General's Office he received the National Society of the Sons of the American Revolution Law Enforcement Commendation Medal. In January, 1997, he presented lectures on civil rights subjects to the Illinois Attorney General's Office. He has also given lectures to the Vermont Law School, and the Texas District Attorneys' Association. In April, 2002, he presented a lecture at the Georgetown College of Law on the subject of malicious prosecution and 42 U.S.C. 1983 at that law school's annual Section 1983 seminar.

In his career, he has argued four cases before the United States Supreme Court: Thompson v. Oklahoma, 487 U.S. 815 (1988); Burlington Northern v. Oklahoma Tax Commission, 481 U.S. 454 (1987); Oklahoma v. Castleberry, 471 U.S. 146 (1985); and Eddings v. Oklahoma, 455 U.S. 104 (1982). David has also argued and written briefs regarding numerous cases before the United States Court of Appeals for the Tenth Circuit.

For over twenty years, David was an adjunct professor the Oklahoma City University School of Law, and taught courses there in constitutional civil rights, disability law, trial practice, employment law and appellate advocacy. He also taught employment law as an adjunct professor at the University of Oklahoma College of Law.