In the MLS listing, you put the amount of commission you are offering for buyer's agent. Then the real estate lawyer draws up the final contract with that included and it comes out of what you get. For direct person to person, I imagine you can just skip that part. If you put that you are willing to pay 0% commission, I think what will happen is that everyone who is actually relying on their buyer's agent to source houses to look at will not be brought to your property, as there is nothing in it for them.
You might lose out on a profitable bidding war, or the one customer who might buy the house coming through by doing that, but you might get an extra 2.5% if it works out.
