Jo Anne and others
Lending guidelines require selection of "the best comparables", not USPAP. The best argument for a given sale being the best comparable is the least net or gross adjustments. As Jo Anne points out, explanation of our opinion is what makes an appraisal report insightful and meaningful to a client. The mere statement of what we believe to be fact, ie, "the best comparables" may not be sufficient.
As a follow on point, USPAP Std 1-4(a) requires that "when a sales comparison approach is applicable, an appraiser must analyze such comparable sales data as are available to indicate a value conclusion." Nothing is said about best sales.
As I have posted before, in theory under USPAP, you could come to an appropriate value conclusion by making appropriate adjustments to the Washington Monument, the Taj Mahal and the Louvre (assuming they had sold as arms length transactions) when the subject is a duplex apartment located in a redevelopment area in my home town.
Hardly the best comparable sales as the net and gross adjustments would be impressive but in theory, if you made appropriate adjustments, you could reach a reasonable value conclusion.
Regards
Tom Hildebrandt GAA