I'm curious. If the OP is adopting the dog as a PET dog, but would also like to utilize it's ability to assist her husband at night (when he is home from work) as an added benefit to having a PET at home, would there be a problem?
I understood the post to read the husband wasn't looking for an official service dog, as in a dog for full time usage, but a dog that could assist while he was at home after work. While still enjoying having a PET at home.
I really don't know, I'm asking a question. I've taught my GSD to pick things up for me and hand them to me. Just as something to teach him. He'll also stand still and allow me to 'pretend' to use him for leverage. He isn't a service dog, he just likes to have a job. But wouldn't it be an added benefit if I really needed him to pick something up (say I break my leg, God forbid)?
Hondo Von Dopplet L Bauernhof "Hondo"- GSD
Lilie's Tug McGraw "Tug" - Golden Retriever
Maggie - Mini Dachshund (Rescue)
Lonestar Pivo - Texas Blue Lacy
Ashe - Barn Cat
Katie / APHA