short sale credit ???

A short sale is way better than a foreclosure. It shows as settled on your credit. When you apply for credit the next few years the lender will ask you why you did a short sale. It's not as good as paying off the loan by any means but it's much better than foreclosure.

Depending on how it's handled, it may show up as a foreclosure, or if you're lucky it will be a "pre-foreclosure" which won't ding you as badly.

Keep in mind that the difference between what you owe and what it sells for will be reported to the IRS as income and you will owe taxes on it.