Here's one story of a house almost sold out from under the owner. Seems to me there were a few cases in Ontario a few years ago. The (alleged) perps used high quality fake ID and were working through a lawyer who decided to do a little detective work himself.
https://www.cbc.ca/news/canada/toronto/alleged-title-fraud-suspects-caught-1.6771689
https://www.cbc.ca/news/canada/toronto/alleged-title-fraud-suspects-caught-1.6771689