Ask the seller who got into escrow with a buyer, taking the home off the market only to lose the buyer, didn't get to keep the deposit (bad or no agent advice), and missed the peak of the summer price trends. Ask the buyer who didn't receive the seller's disclosures (bad or no agent advice) and is now in a legal battle over non-disclosure issues. Each of these principals SHOULD have had a better agent to protect their interests before, during, and after the sale. In short, if you know real estate law, principles, and practices, you don't need an agent. Oh, and you better have E&O and liability insurance since you are taking on a licensed profession in your spare time.