Clayton Owen Carmack Practice Areas Category: Business Law ProfileReviewsClayton Owen Carmack completed law school at Mercer University-W. George L.S. and has been practicing law since 8/5/1992. Clayton Owen Carmack is located in Marietta, GA Leave a Review Cancel reply Your email address will not be published.Review text Select a rating Overall Name Email Website Save my name, email, and website in this browser for the next time I comment.