ED it could be a slippery slope. What if the OP was on an auto MLS feed and got the new listing information from email that the original agent sent? Getting the cancellation agreement is always the cleanest way to sever the relationship. Even with that cancellation, IF the OP goes back to one of the homes that the original realtor showed them, it would be best to use the original realtor to buy that previously shown home just to make triple sure. I would agree it would be best to consult an attorney.