If seller requests and pays for his own appraisal it is not public knowledge. It is a private business transaction between the appraiser and the seller. As you say, seller is trying to justify their asking price. However, depending on the competitive properties that are used, it will either justify his price and bring him into a more realistic mental state. LOL. that benefits you!! If the appraisal supports his price, you might consider and benefit from disclosing that fact. Good luck!
Real estate appraisal value is different to real estate marker value whatever we are talking about the principle or practice. As a real estate agent, you should use your real estate opinion to serve your client. Appraisal value is for lender and other non-real estate purpose such as tax. If your client was damaged because you used appraisal value to discuss the deal, that is malpractice.
For example, appraisers do not have to consider the materiel and age of the floor and windows. They do not care the type of the roof style. They don't care the trees in the backyard. They do not care the floor plan. Do not you think realtors would not care those things too? Of cause not. We care all the materiel out clients care.
Tell your clients, we will not use appraisal value to do anything. We, as realtors have our own professional opinion that come from clients concerning.
Finally, if there is an appraisal report, that is a materiel fact. The agent shall disclose it. That is the other reason why do not order the report without lender's requirement.
Century 21 My Real Estate
I just wanted to make sure before I suggest it. Seller is pretty sure his house is more valuable than the market reflects and better than those around him so I thought suggesting he get his own appraisal that it satisfy him.