Thank you for responding JMFS! To answer:
1. Yes, neutered.
2. My brother claims to have taken him to the vet, but I am unsure, so I set up an appointment next week.
3. He roams freely in the living room and den with bedroom doors shut.
4. I just noticed he actually squirts a little bit of pee in lots of places indoors, and occasionally lets a lot out.
5. I will check that out!
6. I will also get some of those!
7. Okay, I’m going to get some hard data on this.
8. Ah, I see I see.
One thing I have noticed since I started to walk him, especially today, is that he pees a little bit several time throughout the walk, similar to how he pees around the house. I don’t know if this info helps.