[Bella Mae]

I too had a dog like that, it was a female westie. I had two of them, sisters, one was very sweet and the other was like a devil child. I had hired personal trainers, etc but to no avail. When my husband got sick, I couldn't do it anymore. I contacted the westie rescue and they had a behavior specialist for dogs take a look at her and agreed that she needed to be in a home with no other pets and only one owner. The rescue found the perfect match, my husband and I drove this westie to its new owner to make sure I would like him, It was a match made in heaven. So my opinion is don't think you are giving your child away, think of it that you need to find a home where the pup is an only pet etc....
You never know what a different environment can do.
In my case, the new owner stayed in contact with me for several months updating me on how my westie was doing.
God Bless you and Good Luck