From what I have gathered by reading this board hoping to rent some points for next year, you would post points to rent. You would state how many you have to rent, how much you want per point and what the use year is. Also state your home resort so people who want the 11 month window can get it.
You would cal and make the reservation in the renters name (some make this a 3-way call with renter on 3rd phone) after you received half the rental price for a deposit. The 2nd half would be due maybe 30 days before reservation. Non-reundable cancelation unless you can rent that time to someone else for same money. Writing up a contract is a great idea.
Take a look at some of the posts here and see what they do, and make sure to read the FAQ's in the link at the top.
Hope I helped and anyone feel free to correct any mistakes I've made.