I have worked on several short sales, and the time always differs depending on the bank and seller response. I find that if your loan is with a credit union, it can close as fast a regular sale, but if its with major banks..it may take up to 6 months. Chase is notorious for being very very slow in these types of transactions.
If you like, I would be happy to discuss your particular situation with you at no cost. I also provide free loan modification assistance as well if that is an option you would like to explore.
510 932 1066