Best way to use a broker? I''''m 0 for 2.
The first thing to remember is that a broker works for the seller not the buyer. Most I have come across don''t work at showing boats, just getting paid after you convince them you want to buy. I have had some worst experience with brokers than the stories you tell. I once drove 7 hours one way to look at a boat only to find the broker sent a friend to show the boat. The friend did not know the first thing about the boat and the trip was a waste of time(just to tell one story). With the age of the internet I have bought and sold boats with much better luck dealing with private listings.