Eager to find a job after leaving jail for stalking, burglary and vandalism convictions, Richard Karelas filled out more than 30 applications that, he said, asked whether he had ever been convicted of a felony. "I would get a look from people like, 'Oh, man, a hardened criminal,' " said Karelas, 56, of Rancho Cordova. "As soon as they put a label on you, you don't have a fair chance." Experiences such as this are driving an effort in San Francisco to eliminate the practice of requiring applicants for city jobs to disclose upfront whether they have ever been convicted...