That home is being sold as a short sale which means that there is no guarantee that you can get the house for the price offered. The way that this works, once the bank has an offer, they will have the house appraised and also looked at by a couple of real estate agents to help establish the value of the home. If the value of the house comes in at what you are offering, then the bank will normally accept the offer and escrow will open. This initial process can take some time, but once the short sale is approved, then the escrow can move fairly quickly.
If you have not found an agent to help you with this home, then please let me know as I would be happy to help you with it. I live in Apple Valley, I'm a certified Short Sale Specialist, and I sell a number of bank owned homes in that area.
Looking forward to hearing from you