If you’re looking for a painter, you’ll have a hard time finding better than Queen Anne Painting. They charge a lot more than the guy from the Home Depot parking lot, but you’ll be happy with the results. I don’t know if they do wallpaper, but I’m sure they can recommend someone if they don’t.
I don’t have a financial interest in Queen Anne. My GF is a designer. She won’t allow any other painting company on her projects because of their quality and professionalism. I’ve seen them work and they do a good job.