So, me and my friend Alexis have been friends for a long time now (real life and in-game) and we want to room mate in Wiz that way we could think of things together and improve the dorm together without being confused and I understand the difficulties of it too. But like, lets say you and a friend went to either of y'all's dorm, then you could see the button that says "Move in?" and press it and the offer shows up on their screen and they can either "Accept" or "Decline" and then their dorms should become one, as in like there's a door connecting each dorm and we're allowed to improve each others dorm together. And then if you ever want to move out, you should be able to see the button again just it'll be red and you'll be able to "Move out" if you click the button. (Also, dorm could also involve houses like the Royal Playhouse and all that. And connect each others house/dorm together).
