Keith began his legal career at the District Attorney's Office and served in that capacity before joining Trotter Jones. As a prosecutor, Keith litigated over twenty felony jury trial obtaining multiple life sentences for violent offenders. During his tenure, Keith served as lead attorney for the Augusta Judicial Circuit's Drug Court, which provided alternative legal resolutions to non-violent offenders. Keith was appointed to serve as an associate Juvenile Court Judge for the Augusta Judicial Circuit in 2013. Keith earned a football scholarship to Furman University where he played cornerback on two Southern Conference Championship teams in 2001 and 2004. In 2008, Keith was awarded a Juris Doctor from Michigan State University. While in law school, Keith served as the Notes and Comments Editor of the Michigan State Journal of Gender Law and Received the Jurisprudence Award in Criminal Law.