Can a reviewer dispute the work of the original appraiser using new information?

The correct answer is that a reviewer cannot dispute the work of the original appraiser. In general, the role of a reviewer is to evaluate whether the appraiser adhered to established standards and guidelines, rather than to challenge the conclusions reached based on new information. The reviewing process is focused on ensuring compliance with relevant regulations and standards, rather than re-assessing the value conclusion based on additional data.

Reviewers may identify errors or omissions within the original appraisal; however, they are not supposed to override or alter the original appraisal's conclusions without proper justification and due process. The outcome is intended to safeguard the integrity of the appraisal process and to ensure that disputes are handled through proper channels.

While new information can play an essential role in the overall appraisal process, its introduction during the reviewing phase is more about notifying the original appraiser or potentially opening discussions, rather than outright disputing their conclusions. Proper appraisal practice emphasizes the importance of using available information at the time of the appraisal.