I've taken in a stray cat who is an intact male. I'm estimating his age at less than 2 years, but I don't have experience with young cats. He is at the vet today and will hopefully be neutered (it depends on their schedule).
Since intact tomcats are notorious for territorial marking, how long will that behavior last after he's been neutered? We've been keeping him in the garage, but it would be easier to keep him in a spare bedroom. I just don't want him to spray inside my house.