Your first link didn't work. Have you had any large breed dogs before? I know you said this would be your first GSD --- GSD shouldn't be a person's first dog. Being that the dog is 8 months old I have a feeling the truth of the matter would be the owners can't handle adolence of an 8 month old GSD and I have a feeling the dog wasn't socialialized properly or probably not trained. Strange to me to hear husband is retired and they have a toddler, and trying to figure out how they got the dog from a breeder when husband didn't want a dog. Seems most dogs get rehomed around 8 months because of lack of training, socialization and adolence problems that can crop up at that age due to first owner's lack of knowledge of the breed and patience. Just my two cents.