@Timothy Wingert Hello Timothy, that's a great question!
This is a standard Buyer-Broker Agreement in the state of Utah, and yes if you signed the brokering agent could try to collect the 3% purchase price from you regardless of who discovered the property or how it's listed.
My team and I never hold our clients to the 3% if the BAC is say 2% or 2.5% and I doubt many would, but it's always best to get something in writing if you're concerned, and your agent can write an addendum for you. Additionally, when negotiating with sellers, fsbo or otherwise, usually they'll agree to pay the BAC for your agent!
With my clients I usually don't sign them until we're ready to go see properties or submit an offer (that's when you're legally required to sign them). I usually just try to provide enough value to them that when we do go to offer they want to choose me, and that works sometimes and sometimes I've gotten burned.
Does that help clarify at all?