Is it permissible under USPAP for an appraiser's workfile report copy to be unsigned?

Under the Uniform Standards of Professional Appraisal Practice (USPAP), it is required that a true copy of an appraiser's workfile includes a signature. This requirement ensures that the appraiser's conclusions and the integrity of the appraisal process are clearly communicated and can be verified. A signed report signifies that the appraiser stands behind their work and that it adheres to professional standards.

The presence of a signature also helps maintain accountability and integrity in the appraisal profession, providing assurance to users of the appraisal that the report has been properly reviewed and finalized. While appendices or other elements of the workfile may not need a signature, the core report must reflect the appraiser's formal endorsement, reinforcing the importance of signatures in validating the work produced.