I will guarantee that any puppy purchased from me will be healthy to the best of my knowledge, but I do ask you to get the puppy checked out by a vet of your choice within 3-4 days of purchase. This will establish a relationship between you, your puppy and the vet. If there is a problem that will lead to a fatality or if your pup has already died due to an illness which came from my facility then I will replace the puppy as long as I have confirmation from the vet. However, I cannot be held responsible for any illness that could have been prevented such as coccidiosis (trauma induced illness) or hyperglocimia (low blood sugar) which can be treated.
As far as the size or color of your puppy at maturity, I can only guess at that. But I have been breeding for 21 years and I am usually not off by too much.
I also will not be able to tell you if the puppy will be good for breeding purposes. Although, my puppies will sometimes be way too small for that use (especially the females). I've never had any problems with the male puppies not being able to perform this task (testicles not dropping). Although because the puppies will be small dogs, it sometimes takes longer than normal for them to mature fully.
Nancy
( this guarantee only applies to puppies purchased from Nancy Fowler)