As an agent of your client, you must obey their instructions. That's only if their instructions are not illegal and are in accordance with the as the agent for your client, you must be loyal and keep their best interests ahead of those of any other party, including yourself. How much commission you might make, particularly in competing offer situations, should not be a consideration and would be disloyal to your client many states the law requires a real estate agent, whether in an "agency" capacity or not, to disclose material facts to their client. Material facts are those that, if known by the buyer or seller, might have caused them to change their purchase or sale actions.
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