My foster daughter is driving me bonkers

First off, you are speaking of a service dog like you can just pick one up. I think you mean "companion animal" which would be able to accompany her to some places but not all. A service dog is usually trained by a non-profit. I raised seeing eye dogs for a national seeing eye dog foundation. This dog needs to be taken back. To even start training a companion animals you need a calm natured, intelligent and willing breed. Think lab, golden or german shepherd, australian shepherd, etc. This is not the dog for you.