I dont know much about the rest, but I once weeded out a conman who wanted to "sell" a plot to me. I had done all background checks and confirmed the ownership of the land, and the only thing remaining was to check whether this guy was actually the guy indicated on the title deed. So when he took me to view the land, I asked for what he did not expect. He expected me to ask for his ID but I was smarter. I asked for his ATM card. You can make a fake ID, but most conmen dont bother making fake ATMs because nobody asks for them anyway. Also, you cant beat the bank verification process to get a fake ATM i.e local banks. Akaniambia hawezi nionyesha hiyo ATM, and I drove off. Two weeks later, I met the real owner, and he was not interested in selling the land.