
I would think thatr a very poor reason, and if that is it then why write in a clause to the agreement when pup was sold that the endorsement would be lifted if health tests carried out.
for me the only legitimate reason for not liftin the endorsements if the case is as is stated, would be if the new owner were unethical in their breeding practices, but would still think that the original contract should stand, and the endorsement be lifted.
Maybe breeders who do not want a pup to be bred from if passed on should right that into the clause on whether they would lift the endorsemet, or simply have the endorsement in place with no lifting clause, then they won't be breaking the terms of the contract.
I am not sure about the legal side but I assumed that all terms and conditions are transfered with ownership. Certainly restrictions applying to land and it's use goes from one owner to the next. If things didn't hold when dogs were sold on then there would be no point to endorsements at all.