There are thousands of other short sale and REO properties to choose from, so why do you have to have this one?
Does it has spectacular views? Is it in an incredible location? Are you buying it at rock bottom price?
It would be a huge missed opportunity if you are a first time home buyer and the $8K tax credit opportunity is coming to an end on Nov, 30th.
Where is your agent (the buyer's agent) in all of this? I assumed you have your own agent to represent you and I hope that you are not using same listing agent who represents the seller and you. Contact the broker for assistance if the agents are not responding to your inquiries.