I know the questionnaire that I had to fill out for one of my girls included things like
What do you plan to feed?
Do you have other pets and will they be interacting with the glider?
What is the minimum cage size requirement?
List some of the diseases that gliders can get
What is over grooming and why does it happen?
Did I rent or own and if I rented were pets allowed?
Are gliders legal in your state/province?
They were really just testing my basic knowledge on glider care
The contract stipulated that the breeder had a right to request pictures/videos at any time to check up on the glider and like you said if for some reason I could no longer care for the glider that it be given back to the breeder. It also stated that the glider I was purchasing was for pet only, I was not to breed so if your gliders are just pets I would be sure to put that in the contract