The first thing you need to do is determine what the value of the home. Knowing the value will determine if a short sale is even needed. I suggest you find a realtor that knows the area and short sales.A knowledgeable short sale realtor will help you determine value and second if it is a short sale they can guide you through the process.This is not a process you want any realtor doing unless they have experience with short sales. Once you have determined th direction then I would suggest in either situation price the home at 5 to 8% under market to attract buyers.
If you need help finding a realtor that specializes in this send me a pm and I will help you with that.
Good luck, I hope this helps.
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There are no shortcuts to any place worth going. (Beverley Sills)