Zoila,
This is very common, especially in markets like mine where the market is rapidly decreasing in value AND the appraisers are extremely conservative.
You will just need to send the buyer's appraisal report, a price addendum and a revised HUD to the negotiator at the bank in most cases. Some banks are quick to issue a revised approval and others are very slow. In some cases, the servicer may have to send these documents to the actual investor or MI company for a revised approval as well.
I have several short sales like this right now.
_________________________
Len McGuirk
Prudential Americana Group
Direct: (702) 203-6688
Las Vegas Real Estate