A key question to ask is at what age will the vet do a spay or neuter. Some will do it at 4 months if the pet is hormonal, but others would rather wait until 6 months, when the rabbit is bigger & easier to operate on. I'm not sure which is the right answer, but the vet's explanation of his/her choice is important. If they can't explain why, I'd look further. Also ask how a rabbit should be prepared for surgery. If they say the rabbit has to fast, move on. Rabbits can't throw up, so fasting is unnecessary & throws off their digestive track.