I'm not sure of any regulation on this issue but the bank I worked at before this use to do what you are refering to. We had what was called the "Negative Appraiser" list. These were appraisers who consistantly appraised the value of the real estate higher than the bank determined it should be. Therefore, the bank would not accept any appraisals from people on the list and would require the customer to obtain an appraisal from another appraiser. We did this for the last 2 years that I was there. But like I said I don't know if there is a regulation prohibiting this practice.
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