After a county site is removed as provided by law, all the courts which are required by law to be held at the county site of the county, by proper orders made by the judges of such courts at chambers or in regular session and entered on the minutes of the courts, shall continue to be held in the old buildings at the former county site until the new buildings at the county site are ready for occupancy. All the proceedings of any court so held shall be legal.
Georgia Legal Code