You could try to lease or rent with an option with the sale occuring in a few years (gives the buyer an incentive who really like the house) or you could ask Chase for a loan mod, or interest only pymts while you try to sell.
How far behind in your payments are you?
Bottom line: if you need to sell the home, it needs to be priced correctly. Does your realtor have experience with short sales?
It's a tough situation to be in when you have to throw good money after bad. Are you guys current on your payments?
Please let me know if you have any questions. I am a Certified Distressed Property Expert http://(www.cdpe.com) and deal with situations like this one on daily basis.