They've had him for a couple of years and yet they haven't had him to see a vet??? Who knows what else is going on. He may have diseases that they don't know about. He's spraying and he doesn't get along w/other cats b/c he hasn't been fixed and even after he is fixed, it's probably going to take a long time and medication before he stops spraying. Good luck trying to place this one. If these irresponsible people had done right by him from the beginning, they more than likely wouldn't have these problems. The fact that they haven't answered your email is very telling. They're probably already taken him to the HS, poor guy.