We rented to two diff. families last year and everything worked out really well.
Answers to your questions:
1. Just give them the names of the guests that are staying. You don't have to disclose that you rented. You can make reservations in anyone's name b/c they are your points.
We requested that the confirmation be mailed to us, but our renter's name and address appeared on the reservation. Once the confirmation arrived, we faxed or mailed it off to them.
2. Have their address, phone number and the ages of any children. The will also ask about the dining plan and Magical Express. You will need to take care of these arrangements for your renters. Magical Express can be done on the member website.
3. Congratulations for a successful renting agreement!! It is nice to know that we can rent points if we aren't going to use them