[JuanRamos]

Are there any vets that offer a boarding service where you live? Until you can manage his problem, I think the best thing to do in order to avoid more complaints from your neighbors is to board him when you have to go out for long periods of time.

and don't worry about leaving a dog in a crate for a couple of hours. As long as you give him proper exercise during the day he shouldn't have any issues, much less now that he's an adult and can control his bladder better than a puppy.