You sent, you don't have a Realtor working on this?
You can wait for virtually forever, banks take there time, and many times they will still come back with a non-acceptance of your offer. The asking price on a short sale is not alwats an acceptable amount to the bank. The listing Realtor made that price and many times the bank has never seen that listing price until someone makes that offer to the bank and the bank says three months later, no that is not enough. They will not give a counter offer, so now you have to figure out what is a price they will accept. This can go on for a while and then at any time the bank can turn around and just continue to foreclose on the proprty and take ownership