1) Feel free to personalize as much as you and your roommate see fit! The fae understand the Adopted will want their creature comforts.

2) They will think Laszlo's a little crazy, but they'll agree to it and get him a coffin.

3) There's a cellar under the common area between the two sections of towers. If he doesn't mind sleeping among wine bottles and whiskey casks, he's more than welcome to settle in down there unofficially; he'll still wake up in his usual room if he were to die, for example.