New and returning Cobb County commissioners will be sworn in over the next few weeks. District Two Commissioner Bob Ott, who was re-elected, will be sworn in 4 p.m., Wednesday at the Cobb County Superior Court building. Chairman Tim Lee, who was re-elected, will be sworn in at 10 a.m., Thursday at the county’s headquarters in Marietta. Newly elected District Four Commissioner Lisa Cupid will be sworn in 2 p.m. Jan. 4. at the county’s headquarters.