Mr. Cooper has been City Counsel for Pineville, Missouri and Anderson, Missouri and continues to serve as City Counsel for Goodman, Missouri (1999 to date). He was Prosecuting Attorney for McDonald County, 1995 through 1998. He has served as Newton/McDonald County Bar Association President. He is a member of the Missouri Association of Criminal Defense Lawyers. He has been, for many years, a member of the Newton/McDonald County Bar Drug Court. He has served as Municipal Judge for the City of Neosho, as well as for the Cities of Diamond, Missouri and Seligman, Missouri.

Mr. Cooper is engaged in general practice but concentrates his primary practice on criminal defense. He has handled successfully numerous major felony cases, including homicides and sex offenses.