Please see my blog with tips and advice on buying a short sale.
Liane Jamason, REALTOR
Keller Williams Realty
Best wishes to you!
If you submitted your offer through your Buyer's agent they can follow up with the Listing agent and find out where in the process your offer stands. Wells Fargo and Chase seem to be more organized and customer service oriented than BOA. You have an advantage there.
Follow up with your agent regarding the status of the file. Try and follow up (for example) every Monday morning for an update.
if you have a cooperative seller, knowledgeable real estate professionals and good attorneys Short Sales can and do go a lot more smoothly.