In the development of an appraisal, the appraiser is required to:

• A. Not commit a substantial error that significantly affects the appraisal
• B. Only use the best data and ignore weak data
• C. Rely on the client’s opinion of value
• D. Finalize the report without review

Answer: (A)

During development, the appraiser must avoid substantial errors that would significantly affect the appraisal. This safeguard ensures the final opinion is credible and defensible, built on careful analysis and reliable data rather than careless mistakes. The emphasis is on quality and diligence throughout the process, so the work stands up to scrutiny.

Relying only on the best data and ignoring weaker data would bias the analysis and undermine due diligence, since all relevant information must be evaluated and weighed for quality and relevance. Depending on the client’s opinion of value isn’t appropriate—the appraiser must form an independent conclusion based on analysis. Finalizing the report without any review bypasses essential quality control that helps catch errors before dissemination.