flamingo fees

this might be a really stupid question but i know there’s like a down payment for living at flamingo and you have to do the paperwork and pay before you go and live there but do you find out if you’ll have a 2x2 or 4x2 before you pay any fees?? or do i have to pay beforehand. i’m just wondering because if i get a 2x2 i might want to live somewhere else lol.