How about those pesky SOBs renting a room or a house on a for sale property? 
11 years ago I saw a Craiglist ad. Beautiful house, yada, yada, yada. I went to see it, empty, nobody around.
I contacted the āownerā and he told me the reason it was so cheap because he liked to travel but he would be willing to negotiate for lower rent if I gave his chauffer (big red flag right there) the security deposit money order, no check.
The house was going to be toured by realtors next week to be for sale the following week after.
That falls under #4 Rental Scamsā¦
Yeah, my nieceās BF at the time was contemplating moving up here. Good thing he asked me first but he was about to send a deposit to someone over the internet. Stupidā¦
Itās not stupidity. It is the sense that you won the lottery. 
These pathetic greenhorns out of the suburbsā¦
OMG, what is that, a needle and human waste?
Yeah, and? That is city living at its finest. You have to pay double for thatā¦
Really, you do?
Yes, dumba**, pay meā¦double
Loan flipping is when a predatory lender persuades a homeowner to refinance their mortgage repeatedly, often borrowing more money each time
Not a real estate scam but these guys are starting again.