Now that I think about it, we only have Ryker's word that the house is his. It was after all Charles who showed it to MC and gave him a key. Ryker could have gotten a spare set from Charles -with or without his knowledge- when he went there to intimidate MC. What if the house is really WVM property after all, and Willa grants Kimmy and her family the use of it for as long as Kim's a student?
I'm still confused why the cheerleaders decided that Kimmy's was a good place to crash after the Bowling Room Blitz, but if it leads to more content with Kimmy, I'm not complaining too hard. #Kimmyfan