If she were spayed she would be easier to handle and may get along with everyone. Why not try it? Yes they would like a donation but not required. But what chance would your dog have of being adopted?
I think it is free to bring her back
As far ss I know there is no fee to surrender a pet to put up for adoption. I would call them first to let them know you would like to find a new home for your pet ad opposed to just showing up.
Thanks! Your answer is awaiting moderation.