She looks like a very caring, gentle soul. I can see why you will miss her. Hopefully you can see her again.
I'm afraid I don't know, so I'm going to ask. You said she was ready to go back to work. Was she injured? Ill? Did she need more training? You say you've worked with other assistance dogs. Is that what you do?
It sounds like a very noble thing. Is it your job?
I'm also wondering why you haven't gotten a dog of your own, but I imagine having an assistance dog to care for is plenty.
She needed to find a new owner that she could work for and also a little bit of training. I'm not an assistance dog trainer but I took care of the dogs and maintained the training! :)
We will get an own dog in the future. Pretty sure it will happen soon! :)