I used to work in banking as an executive, I would get very wealthy people coming to me with official looking letters. They won money, someone found millions that is rightfully theirs etc etc. The one thing that drove each of these people to want to believe this letter was real was greed.
My guess is this home you are looking at is an AMAZING deal, under priced by hundreds compared to others in the neighborhood -
Work with a real estate professional or a professional rental agency is my best advise.
Best of luck!
Kindred Real Estate