What must an appraiser do before relying on a market study prepared by someone else?
Correct Answer
A) Assess whether its data and method are sound
Why this is correct: Assess whether its data and method are sound. The governing concept is due diligence under USPAP. An appraiser is responsible for all information relied upon in an assignment. Therefore, they must review the secondary source's data sources, methodology, and conclusions for reasonableness. Why the other choices are wrong: Obtain the author's written permission to use it may be prudent but is not the primary USPAP requirement. Reproduce the study independently in full is impractical and unnecessary; review and acceptance of responsibility suffice. Confirm the author holds an appraisal certification is not required; the focus is on the study's quality, not the author's credentials. Exam tip: Before relying on any third-party study, perform a sufficiency review of its data and methods and disclose your reliance.
Why This Is the Correct Answer
The appraiser remains responsible for adopted results, so the study's data sources, sampling, method, relevance and the author's independence must be assessed before reliance.
Why the Other Options Are Wrong
Option B: Obtain the author's written permission to use it
Permission is a copyright and licensing matter unrelated to whether the study's findings are sound.
Option C: Reproduce the study independently in full
Reproducing the study independently defeats the purpose of relying on it and is rarely necessary.
Option D: Confirm the author holds an appraisal certification
A credential does not establish that a particular study is methodologically sound or relevant to this assignment.
Adopt It and You Own It
Adopt It and You Own It. Someone else's study becomes your analysis the moment you rely on it.
How to use: Check who paid for the study and why. A promotional study is not neutral market evidence.
Exam Tip
Disclose the reliance and its extent. A reader needs to know which conclusions rest on another party's work.
Common Mistakes to Avoid
- -Relying on a study because of the author's credentials
- -Overlooking who commissioned the study
- -Failing to disclose the extent of reliance
Concept Deep Dive
Analysis
Relying on another party's market study means adopting its findings into the appraiser's own analysis, and the appraiser remains responsible for the results. That responsibility requires assessment before reliance: what data the study used and from where, how the sample was drawn, what method produced the conclusions, whether the geography and time period match the assignment, and whether the author had an interest in the outcome. A study prepared to market a development, for instance, is not neutral evidence. Where the study passes that assessment, reliance is proper and the report should identify the study and describe the extent of reliance. Where it does not, the appraiser must do the work independently or narrow what is drawn from it. The distractors substitute proxies for the assessment. Permission is a copyright matter unrelated to reliability, full reproduction defeats the purpose of relying at all, and the author's credential says nothing about whether the study itself is sound.
Background Knowledge
USPAP requires appraisers to use appropriate, verified data and holds them responsible for assignment results. Third-party studies must be assessed for data quality, method, relevance and the author's independence before reliance, with the reliance disclosed.
Real-World Application
An appraiser reviews an absorption study's sampling and sponsor, finds it prepared for the developer, and uses it only as corroboration alongside independent analysis.
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