How to get a short sale going ?

I currently own a condo in Fremont, CA and have too many debts to pay the mortgage plus the value in my condo has gone way way down. Would like to look into a short sale but do not know where to begin? What if the condo does not sell? Do I go straight into foreclosure? And I know my credit goes bad for 7-10 years but will they continue to bug me for the money...or garnish my wages or tax refund if the condo has been foreclosed? Anyone know of a good real estate attourney in the Bay Area? PLEASE HELP!