Springfield Mayor Mike Houston will leave office Thursday, when his successor Jim Langfelder is sworn in.
Langfelder won the primary in March and the April general election.
Houston, who served two terms about 30 years ago, returned to city politics to win in 2011. But voters denied his latest effort.
Houston says he has told Langfelder that he will help him in the transition if asked:
"By the same token, I know he has a father who has served as mayor of Springfield for 2 terms, that he will be relying on very very heavily," he said.
Langfelder's father Ossie defeated Houston in 1987.
Houston lists his main accomplishment as getting the city's budget in better shape. He says he has no future plans.