tell me about fanny-mae / REO

[look 171]

I bought a fixer cabin in our local mountains. They accepted our offer and we finally signed docs and the plan was to close in 10 days with the title report in place and without any contingencies. With three more days to go, they decided to pull it from under us ad re-listed it again this morning. I ask my agent to resubmitted again only to find out that they refuse to accept our offer. WTF? I am told they don't have to give me any explanation. I am f'king piss to say the least. Any thoughts?