Are you still current on the mortgage payments, or have you defaulted? If still current, then that is why BofA is doing nothing; they're milking you for as many payments as they can get away with! If you have not already done so, check out this web page for links to obtain counseling for your issue:
It is part of the Maryland Department of Housing and Community Development.
What was your goal? (shortsell the house and reduce credit damage?).
Whether its a shortsale or loan mod, has your property lost so much value that the negotiators are not releasing the sale? Or is it a second loan issue?
If you provide just a little more information, I will be able to point you in the right direction.
However, it does seem that you might as well stay in the house (for free) until some resolution or foreclosure has been finalized. If your credit is damaged already, staying in the home without paying the mortgage will not cause any additional damage.