We were actually the victims of a similar scam, long ago (2004). Rented a condo from the Management Company, no problem, paid deposit and rent, got receipts.
After about 3 years a lady turned up at the door and was rather surprised to see us. She had a loong chat with Madam and drank coffee. Turned out she was the actual owner and the Mgmt Co. weren't sending her the rent and hadn't told her there was anyone renting.
We switched to paying her direct and stayed another 5 years. Condo management company were, er, removed.