Most cropping experts will tell you the best time for ear cropping is 7-9 weeks, so if your puppy is already 9 weeks you will want to make a pretty quick decision. If you were unaware this is usually something that's taken care of by doberman breeders before they send puppies to their new homes. I would say ask your breeder but one probably won't be much help. If you like I can add your location to the thread title so folks who know of a cropper in your area will be more likely to reply. Good luck.