I really don’t think a broker is going to not show an offer to you unless you tell them not to. I mean, sure, they stand to make more money the more it sells for, but they still want it to sell, otherwise they make nothing. Sure, brokers prefer prices to stay high, but it’s also a volume business for them. And how much would they actually lose on a commission if the contract sells for $10-$20/point less than what they think it could sell for? At most, we’re probably talking hundreds, not thousands.
What I could see a broker doing is saying, a pretty low offer came in, I think you can sell for higher if you give it some more time, and that’s what I would advise doing, but the choice is up to you. And, on the flip side, they might try some gentle education of the buyer presenting the low offer.
I could see other brokers acting as pure conduits, not wanting to spend any more time than absolutely necessary on offers because, for them, all they really care about is volume and moving contracts. Even more so if they sell a lot of worthless timeshares where they make money on other fees they might charge to sell a contract.