Thats interesting, why would the seller have any control over the appraisal? The mortgage broker who requests the appraisal is typically working with the buyer.
You are correct they didnt have to agree to change anything. But there were other houses that were closer ( one of the comparables that he pcked was in a different neighborhood and was waaay cheaper ) and houses that were more similar so we pointed that out. He agreed and redid the estimate with houses that were closer both on distance and in size/amenities. All of this was throught the realtors ours and theirs.
True, but the appraiser has zero incentive to disagree (unless it's overtly fraudulent there's no such thing as wrong appraisal) and probably some incentive (repeat business) to keep the agent they are working with happy.