Nope - remember, Domon's on the shortish side - only 5'10" if I remember right. Plus, Domon's training is all martial arts and agility. Being a beefcake wouldn't help him much.

Given that we know Ard's renting from him, and probably helped Sir John do househunting, I expect that's him.

Besides, remember how much problems UF-Ard had with her gun collection and landladies? I suspect that the Chief's ideas about "Home defense" would probably make him a pretty poor renter in your run of the mill apartment.