A friend owned farm land in India, he moved to Canada. The property deed was in his name.
Someone in India, with fraudulent documents "sold" his land.
He only came to know about it when he next visited India. Unfortunately he could not do much. There are people who will actively look through property records - if the person is not a local resident ( lives internationally ), then they are prime targets.
This was a decade ago - things have gotten a lot better with digital records and India's Universal ID system. But I did not realize, something like this was possible in the US.
This is very prevalent in South Africa, to the point there is a legal cottage industry around verifying original documents vs counterfits (down to fingerprint testing, chemical analysis of inks).