It's not a good look on him.
As to the address, I could see that being fine. There are creepy stalkers out there.
5% on the salary, not worth paying attention to. By itself.
Bad pictures, in isolation can be looked over. But still worth noting.
The sale, with the discrepancy between the stories and his mother's history... Why starting to get questions more and more.
Not sure what to make of the ex circus.
Again in isolation none of these should really be an issue. However there are two factors here, his habitual lies and his pestering mother, and this doesn't add up well.
I think you need to look at why he lies about what he does. Is it to save face? Avoid conflict? To impress others?
Has he made any good faith effort to improve himself for himself? Or just go through the motions to get others off his back?
How has he been aside from these known lies?
I don't personally like what he's doing, but it's what you're comfortable with handling. It's all or nothing.