It seems a guy in florida by the name of Joe Lents took out a 1.5mil mortgage on his Bocca Ratton home and hasn't made a payment since 2002. Every time a bank has tried he tells them to prove they are the mortgage owner and they have not been able to produce the proper paper work so h keeps winning in court. It seems there are a number of lenders who, after buying and sell loans in and out of mortgage trusts in a mad effort to make money in the real estate boom, didn't keep very good records. Not a big surprise when you look at the sub prime mess they got themselves into.
I don't know how to do a link but if you want to read about it go to Bloomberg.com and do a news search about banks lose to deadbeat.