This is what I know about the dog: he is 7 months old. The breeder says he has a great temperament, is level headed and accepts him and the other adult dogs in a submissive posture. He was initially reserved but the buyer fell through so he opted to keep the pup on his farm. Now he has decided to pare down the pack ahead of winter as he also has newer pups on the ground. He is from Czech/DDR bloodlines but I am assured is good with children and other dogs. I also told the breeder we have cats and children in and out of the house, so a less drivey dog was a must. I told him my requirements and he picked this particular dog from a pool of candiates based on that. I've seen mixed schools of thoughts on that particular type of shepherd but in reading buyer reviews and seeing photographs of the puppies and dogs in their new homes, it does appear he upholds the mission of breeding dogs for temperament and health first and foremost. That being said, I am no expert and my biggest fear is being sold a dog under false pretense. To that end, he has come down some on the price but not enough to feel like a fire sale pup.
With all of that considered, my main question is: what should I look for when we meet him to discern a good from bad fit? What questions are key to ask (I have a laundry list of questions written down to ask, but I'm not afraid to add to it) and are there any temperament tests I can do on the fly to size this guy up. I have this hope that I will just know if he's the dog for us, but also a fear of bringing home the unholy terror land shark dogs the forums keep mentioning. At 7 months, how pliable is he really? If the basic foundation is there, will a little heart and a lot of hard work shape this into the dog we're looking for?
Thank you in advance for your time. Any input is greatly appreciated.