Extra Bedroom RA Timing

Anyone here have experience getting another bedroom approved with a Reasonable Accommodation? How long did the process for approval take? I have a one bedroom voucher and found the perfect unit but it’s a two bedroom and above the one bedroom payment standard. I was already contemplating an RA for extra bedroom for medical equipment. My voucher expires in a month and a half. I did reach out to my caseworker but since it’s the holidays, I may not hear back for awhile. Trying to figure out if I could even get the RA approved in time. Any insight is appreciated.