In my area
www.costar.com would have that info.
If not you need to find out the auction amount at the foreclosure sale. If the senior lien foreclosing is at a really great price an investor will buy it then at the steps and the bank won't take it back. The current numbers are only half the story and the real value is the upside that the new owner can create.
If you can't get the info they will have to wait until the bank takes it back and get it while under contract in the due diligence period. You could also offer to do a commercial short sale and buy from the current owner. The only reason they wouldn't entertain an offer is if they feel they can joint venture,refi,or file bk to stop the sale to buy some time.