Since you say you are trying to sell, I assume you have already listed your home so our agents can leave out their offer to do so for you. Yes a Short Sale is an option, Do not allow someone that is not experienced in Short Sales attempt a Short Sale, you will only end with more problems. Not all Short Sales are successful, you at least want someone to give it a good college try.
If you are not behind on the mortgage payments yet the mortgage company may restructure the mortgage. They will not like the fact that you have put your husband on the Title so see if your atty. or a title company can have him sign the proper papers to have himself removed. If he does not want to make the payments he should be happy to do this. DO NOT USE A QUIT CLAIM DEED - this is not the proper paper work.
I am sorry for your problems, Good Luck