"......a different spin on the buyer's broker routine? Thoughts?"
That was the part of the email to which I responded. You're right, Peter, there are other questions raised in the original and subsequent post.
The OP says the contract was boilerplate from YachtCloser. I do not use YachtCloser for many reasons in spite of the convenience, so I can't comment on that contract specifically. The agreements I use are from the International Yacht Brokers Assoc. It states in Paragraph 10 that the owner shall pay the commission if within 6 months after termination of the Agreement the Owner charters, donates, or otherwise transfers or conveys the Vessel to any party to whom the Brokerage or Co-Brokerage physically showed the Vessel during the Term.
Judy, No reflection on you personally, but I would accept that clause ONLY provided there was an additional statement that stated exactly who the broker physically showed the Vessel to during the listing period.
This is not speculation, or conspiracy theory on my part. This is from real world experience with a couple of brokers in Hawaii who were known to place liens on boats which they claimed to have "shown" to the buyers. They specifically preyed on service men and women who were selling their boats in preparation to leaving Island under military orders.
Basically, "Pay me my claimed "cut", or I'll prevent your boat from selling, and you'll end up PCS'ing and your boat will be remaining behind, still unsold.
To the OP: You can strike out, or add in any items into the contract you like. The broker is free to run the proposed amendments by their attorneys, and is free to accept the amendments, or reject them. If they reject them, you are then free to find another broker. If the changes you suggest are reasonable, and the broker rejects them, personally, I WOULD find another broker.
I understand that real estate and boats are different, but I've done the exact same thing numerous times in "boiler plate" listing contracts. The amendments were reasonable (at least to me), and most times they were accepted. In the other times, I found different agents. Bottom line: It's your boat, it's your sale, you are in control. Best of luck in going forward.