Automatic filling of empty houses
After Story progression became part of the game, I have found that all houses are filled with random townies. The worst is when Morgyn suddenly lives in Forgotten Hollow and L.Faba lives in Mt. Komore...
Forum Discussion
You didn't mention if you are open to using mods. MCCC has a setting which can be used to stop anyone from moving into houses and another for apartments. I hate having townies in my homes so I use it all the time.
