I am a ferret shelter in Virginia and my 'fostering' is not the same as that of dogs and cats. It is the older and special needs ferrets that go into foster settings. Fostering varies but generally, I agree to pay the medical bills and medications for ferrets in foster care. Medical care must be approved by the shelter first. The normal daily living expenses are covered by the foster family. If I know that a foster family is having a hard time financially, I will provide a bag of food and/or litter every now and then but that is rare. This has seemed to work for us. I hope the information helps you. Robin, FerretsFirst, a Rescue and an Attitude. [Posted in FML issue 5275]