We had kind of a scary first experience with renting a reservation last year. I'm not sure this is a topic for this board but here goes. We rented from someone who owned thru Interval Int'l. The person transferred his reservation to us for a particular week at VWL on a guest certificate (I think that is what it was called).
Apparently, he was not supposed to "sell" his reservation to us...and when I called
DVC member services to confirm that the reservation was transferred, they asked me a lot of questions, then Interval Intl called me, and eventually they locked his account.
We were still able to have the reservation but it was a real nightmare and very tenuous. I was very relieved to be in the room that first night...