I read the entire post. 2-3 times, so I know what he said. But, training is the only reasonable decision in my opinion and many of us can help him with that.

If you're never going to allow your dogs inside, good luck, because I imagine you're going to have a lot of "hard decisions" just like this one in the future.

-Sigh- Good luck I suppose because it doesn't seem you're here to actually listen to our suggestions and you're set in your decision.

Hope your brother-in-law takes the time for her. Also, you may want to speak with her breeder. Often time selling a dog is against the contract. Most breeders prefer the dog is returned before rehoming.