I have had excellent experiences with Dan Krier at Marine Service Center. He brokered sale of 2 sail boats for me, one of which he had sold me new, and he helped me to find our present boat. The latter transaction was complicated because the sail boat I had him sell for me was sold to a Canadian buyer, and the trawler he found for us was listed with another broker. Dan worked with us every step of the way to assure we got a fair deal on both selling and buying.
Dan has been at MSC for many years and he has earned his excellent reputation in the Seattle market area. If he finds a boat for you at another brokerage, he knows who to work with to get you the best deal and assure you are treated well. Here is link to their home page:
Yacht Sales | Marine Servicenter
I Cannot recommend him too highly. Good Luck!