That scene, last season I think it was, of him taking one of the Diosa escorts would confirm that (Hap remarking casually "that's gonna be a whole lotta flop sweat" or something similar is one of the only reasons I'll remember it).

She knows. There's been a few episodes where she's made reference to the Colts by name, a few to Mike on occasion if I remember accurately. It's possibly attributed to her not being a superfan of the team on the level Mike is.

There was never anything said/indicated by Saxon that he was seeking "rehabilitation" from his mother, just that he wanted her to help him live a normal life while he could continue on killing as he had been. Which, the way I saw it, presented itself as another completely stupid moment since aren't we supposed to have…