excellent use of this rental thread...
The person who is doing the renting (renter) is certainly more at risk of money scams than the owner, but the owner also has some risk to money scams. See this post:
http://www.tugbbs.com/forums/showthread.php?t=134998
The problem here was the tight turnaround time (17 days) between the owner and the renter - where the renter apparently used a stolen credit card via PayPal, and by the time the owner found out (via PayPal) - the scamming renter has already checked-in. PayPal is now asking the owner to reimburse PayPal. Interesting issue - since it was actually PayPal that accepted the stolen credit card and not the owner. I was surprised that it would take 17 days for PayPal to realize that the credit card charge was fake. Plus - the owner wasn't actually the owner, but renting an exchange - this can also lead to difficulties.
This owner could have protected themselves by not allowing a credit card to be used in a short turnaround transaction (btw, fraudulent checks and fake money orders also have the same riskes). Also, the owner allowed the renter to pay via PayPal using another name. Also in this case - the owner was afraid that the scamming renter would charge to the room, and they would be on the hook - but that seemed odd to me since it is the person at check-in is required to put up a credit card. It would be pretty risky on the scammers part to use a fake credit card.
As mentioned - for a rental further out in time - the owner has control of the name on the reservation. So if an owner is scammed by false money - they can remove the renters' name from the reservation.
Overall - as an owner it is wise to protect yourself with a rental agreement - make sure the money is cleared before the renter takes possession - do not accept money from someone who is not on the reservation - talk to the person on the phone to gauge their intent - and for me - I would not allow a PO Box to be used.
I do try and put the renter (sine they are the ones putting out the money) at ease by being open and accessible with them (as well as a rental agreement, etc.) - and tell them about TUG and my participation on the forum since it is unlikely that someone who has been contributing (#posts/#years) would be scamming them.
Regardless - both sides have some risk