Not allowed to inspect short sale

[Behrooz K.]

There is a short sale that I'm interested in. It's listed at 50% of comps. The picture shows the windows boarded up.  I contacted the listing agent to go see it with my contractor. He was only reachable via text and said: No access permitted at the property - liability for the homeowner to let people enter freely. Offers are to be made all cash as is. 

What do you guys think? I was thinking to bid for just the land and assume that it has to be demolished and rebuilt. I'm going to drive by this weekend and see it from the outside. How do I find out who the lean holder is and how much is owed? Any advice is appreciated.