Douglas John Hassinger Place Category: Criminal Defense Lawyer ProfileReviewsDouglas John Hassinger completed law school at John Marshall (Atlanta) and has been practicing law since 5/28/1998. Douglas John Hassinger is located in Cumming, GA Leave a Review Cancel reply Your email address will not be published.Review text Select a rating Overall Select a rating Rating Name Email Website Save my name, email, and website in this browser for the next time I comment. * Previous Next