Two more top Baltimore County officials are leaving as County Executive Johnny Olszewski Jr. sets up his new administration. Fire Chief Kyrle Preis and planning director Andrea van Arsdale announced this week that they are retiring. They were two of the department heads who were not included in a list of appointments and reappointments that Olszewski sent to the Baltimore County Council last week. The council is required to confirm Olszewski’s department directors and public safety chiefs. Olszewski said Thursday that he will appoint Assistant Chief Jennifer L. Aubert-Utz to be acting fire chief beginning on Jan. 1. Preis’ retirement is effective Dec. 31. Preis has been fire chief since 2017, taking over for longtime chief John Hohman, who retired. “I truly believe that the Baltimore County Fire Department has given me the most rewarding career one could have,” Preis said in a statement released by the county executive’s office.