ok thanks. I have new vet lined up based on recommendations (moved so old vet is too far away). so when/if the adoption goes through I can fill her in. The rescue is one that makes you sign a contract stating the dog will be on preventatives for life. The puppies are somewhere between 8-12 weeks old. Not sure at what age prevention starts or if they started it yet. based upon what I've read if they're old enough then it would have been started. They rehome the dogs current on all age appropriate vaccines/preventatives and spayed/neutered if old enough... if not bring the dog back when it is old enough and spay/neuter will be covered by the adoption fee we pay.