I adopted one of my rabbits from the House Rabbit society, long while back now, but I think the fee was fifty dollars. I know I gave them $100, the extra was a donation, because I know how much the costs are just for the medical alone. Funny side note, this particular rabbit came to them already spayed, and they passed along her spay certificate to me. It turned out to be from the vet hospital where I worked! I know it cost over 200 to get that one spayed.