You need to find a Realtor that will help you get your home sold fast! A short sale is an option but really it should be a last option. A short sale is very stressful!! You would do much better to ask enough to pay off your home, commissions and any other cost related to your sale. I know it is hard to think about selling and not making anything but your credit report will stay clean and you can easily move on.
I hope this is helpful. I do agree with what everyone below has said about a short sale but my opinion is to get it SOLD!! Do whatever your Realtor tells you to that will increase the potential for your home to get that fast sale! The market is definately picking up with the great interest rate that we have seen lately! Please let me know if i can help you in any way.