Loki was neutered at 6 months. He doesn't lift and he doesn't mark and he IS housetrained. He rings a bell to go outside. He is totally crate trained and house trained. He was about 1 year old before he was fully trained though, but he never lifted his leg on our furniture or anything. He typically had accidents by the door.
He does like to stop in every yard when we go on walks, but that's what being a dog is all about.