We are putting our 4 yo tri after a long battle with complications from SM and CM diagnosed when he was 4 months old. Anyone considering a pup should get their pup MRI’d before they pay or insist the breeder a provide result of an mri. Their gene pool is shallow. The papers they provided showed the parents were related only 3 generations back. We feel they knew something in advance but refused to deal with it other than asking if we wanted another dog. We initially spent $6000 on an mri as we knew something was wrong, he’s been quite sickly since we got him and it reached a pinnacle where we can’t keep him in a quality of life. At 4 he can barely walk owing to neurological issues from CM/SM, he’s got eye ulcers, a poor coat and a heart murmur. There are breeders elsewhere in Canada with stronger genetic pools. Do your research and hold firm looking for answers from them. While a less expense option, you’ll end up paying in the long run. Our first dog from them has a mitral valve issues