When CipSoft added houses to Tibia, they weren't thinking about in a future players would use them for useless Casino system, so I don't think that staff members are going to support this, they had enough with Casino in town's depots, so why would they support this issue?
When writing "*" in your invitation list of your house (aleta sio or som), you're inviting EVERY single player of the game to your house, so they're free to do whatever they want to with it, which means, if someone logout inside there, and you still have invited all of them, they're free to do anything, to avoid that stop inviting all of them. So this issue it's not that important, it's at your own risk and you have to handle it on your way, nothing that staff can do with it.