Anonymous wrote:Google the names of the owners and look them up on linkedin, facebook etc. Maybe you can find some clues as to whether it's job related, a divorce, etc.

and I thought I was the only Google stalker who did this. Great advice!
That said like the others have said, there could be any number of reasons for the quick resale. More likely a personal issue rather than something wrong with the house - unless the history of the house shows a history of quick resales over the years. then I would be concerned.