Tips for trying to do a short sale??

[Drew Denham]

I put an add up on CL, 'I'll buy your house", lady called me and the numbers are just too high (payoff is 30K) for me to take the deal. It's a sad situation because she is just going to give the bank back the house and live in her van. I asked her if I could try to do a short sale and then give her $2K cash to help her out. She agreed (her credit is already bad). I'm going to call the bank tomorrow but just not sure how to structure the conversation. 

Thoughts?

Owes $30, I want it for $20K (plus $2k to owner = $22K). ARV is $80K.

Cash deal