Can I staple with people from the Housing waiting list or entering the continuing allocation because they don have continuing status yet?
Unfortunately, no. The waiting list and continuing allocation are beyond the control of AHEC. You can only staple with people who are eligible to enter the in-house lottery. If after the in-house lottery, your suite still has a vacancy, you can try to contact MIT Housing to see if they can accomodate your request. AHEC and seniority points cannot help with this. If your friend gets into Ashdown House one way or another, they can staple with you in future lotteries afterwards.
