Hi there - we just had our Tudor painted. We were very particular about who we worked with given the nuances of painting stucco in this part of the world :) We ended up going with Puget Sound Plastering. Chris and his team are absolutely wonderful and clearly know what they're doing on homes like this.
All-Pro Painting (Sean Cummings, 206-779-1042) has done extensive interior and exterior painting on my old tudor house, including trim and cabinetry. They are meticulous, and I highly recommend them. We haven't done any exterior plaster work (yet). However, we had Steve Irish (firstname.lastname@example.org, 206-799-1499) restore our plaster walls and ceilings. He is AMAZING & neat as a pin. Steve used teach plastering classes for Historic Seattle & really has a way with old houses. It may be worth asking Steve if he does exterior plaster work. If he doesn't, he can probably suggest someone.