I'm sorry to read about your situation. Have you requested Chase pre-qualify you for Making Home Affordable? Also, if you're serious about staying in your home, you should look into getting help from NACA at www.NACA.com.
If, after trying these options, you still feel you need sell your house in a short sale, feel free to contact me. I will help you get through the process. I can also refer you to an attorney that will help you stay in your home as long as possible.
I know this is a tough situation you're in. Whatever you decide to do, make sure you work with licensed people, like lawyers and Realtors that are governed by the State.
Again, feel free to contact me with any questions.
Green World Realty