Duncan M. Harle earned a Bachelor of Science degree from Southern Illinois University in 1993.
Later, he received his degree in public administration from a combined programme run by the University of South Carolina and the College of Charleston.
After that, in 2002, he obtained his Juris Doctor degree from John Marshall Law School.
Mr. Harle served as an official in the Student Bar Association and a member of the ATLA Regional Trial Competition team when he was attending law school.
He was also included in the Who's Who in American Law School Students publication.
Mr. Harle, who resides in Atlanta, formerly served on the Executive Committee for his Neighborhood Planning Organization and was President of his Homeowners Association from 2008 to 2010.