Nolalab, I'm in Baton Rouge (Red Stick GSR). I'll PM you contact information.
Thanks a million for helping this dog.
I haven't yet had a GSD foster who didn't act like a bath was water torture. They all seem to hate it. Here in Louisiana, what we see in rescue often has never, ever been bathed, so it's no wonder they think it's scary and horrible!
I sometimes have to put on a swimsuit and climb in the tub enclosure during bathtime, usually with a squeaky toy -- and my DH helps. I find singing kids songs helps -- "Old MacDonald" type songs, usually with the lyrics changed to be about that dog. Maybe it eases the stress of the situation because it all becomes funny, and when I relax, they do. It's goofy, but they all seem to react positively to silly singing in the bath tub.
This breed is such a good reader of emotion that if the dog who doesn't know you and is already anxious experiences you stressed by the bath, it's much more likely to react with distrust.
I do think it helps to have two people--one to stand in the tub and do the bathing, the other to keep the dog from jumping out and distract it with treats. Most of my GSDs relax about half-way into the bath when they realize the massage and warm water feels really good...but it takes a while to get there.
And if it's really bad...maybe Dr. K's staff could help with a bath or two?
They've got the big stand-up dog-wash tub that helps. (I'm pretty sure y'all use the same vet we do because I've seen your fosters in there with labs!)