I completely agree with Scott. You absolutely need an agent with solid knowledge in short sales because if they are not handled correctly it will all be a waste of time. They are also very time intensive. Having said that, if you need a high level AVM on the property I could run one for you. Feel free to shoot me an email or give a call.
Having 1 agent working 100% for you is better than 10 agents giving you 10% of their efforts.
Please see my blog for tips and advise on getting a short sale approved and sold