The
panel's decision
advised that REALTOR ® C's original contact with Client A, made at a time when he had no knowledge of REALTOR ® B's exclusive listing, was not in itself unethical, but that as soon as he learned of REALTOR ® B's status as the client's exclusive
agent, he should have taken an attitude of respect for the agency of another REALTOR ®, and refrained from any effort to get the listing until after the expiration date of the original contract.