The Old Exchange Building Commission is created. It consists of nine members. Three members must be elected by the House of Representatives and Senate in joint assembly; two members must be elected by the Rebecca Motte Chapter of the Daughters of the American Revolution; two members, who must not be residents of Charleston County, must be elected by the South Carolina Society of the Daughters of the American Revolution; and the director of the Department of Parks, Recreation, and Tourism and the chairman of the Department of Archives and History or their respective designees serve ex officio with voting privileges. All elected members shall serve for terms of six years and until their successors are elected and qualify. The Attorney General shall give his aid, advice, and opinion upon questions of law submitted to him by the commission. If one of the seats of the commission becomes vacant, a successor must be elected or appointed in the same manner used to fill the seat. This successor shall serve the remainder of the unexpired term. If one of the three seats on the commission elected by the House of Representatives and Senate becomes vacant during the recess of the General Assembly, the Governor may fill the vacancy by appointment until an election by the House of Representatives and Senate in joint assembly at the next session.