What's the most appropriate action when faced with limited information in a Restricted Appraisal Report?

When faced with limited information in a Restricted Appraisal Report, contacting the appraiser for more supporting data is the most appropriate action. This course of action ensures that the appraiser can clarify any uncertainties and provide additional data or context that may be necessary for a more thorough understanding of the appraisal. The appraiser is the best source for expertise regarding their own findings and methodologies, and they can provide insights that may not be included in the report itself.

The other options may not be as effective or could lead to potential misunderstandings. While independently researching sales information might seem like a proactive approach, it does not guarantee accuracy and may not align with the specifics of the appraisal being questioned. Rejecting the appraisal outright without seeking further clarification denies the chance to gather important information that could rectify any concerns. Lastly, auditing the appraisal for accuracy without any additional contact could overlook nuances or information that the appraiser could provide, which is key for a fair assessment of the report's validity. Hence, establishing direct communication with the appraiser is the best step forward when dealing with a Restricted Appraisal Report that lacks sufficient information.