The thought of them doing something like this crossed my mind when Kiko first started coming in. It didn't quite make sense for a couple, married or otherwise, to be living together at first and then all of a sudden not be living together, not unless all the girls were all involved in some work related project that had nothing to do with RLC. But then the first girl moved out and she was replaced, and then the second girl moved out. At first we started off with 4 girls, then 3 girls, and on top of that it seems like none of them with the exception of maybe Nora is bound by any obligation to stay there, so it's POSSIBLE that at some point in the future the other two girls could leave and turn this into another Nora/Kiko apartment.
Of course this is all speculation. If this really was RLC's intention's from the start then I would 100% agree that this would be a scummy move on their part, especially since they put this as a premium apartment. But the argument that Kiko just shouldn't be there because his name isn't on the list is just ridiculous, just because you don't want to see any guys there. If anyone really expected not to see ANY guys there staying over or even for an extended period of time, then you were sadly deluding yourselves.