Before accepting an assignment, for how many years must an appraiser disclose any service provided regarding the subject property?

The requirement for appraisers to disclose any services provided regarding the subject property before accepting an assignment is based on the established guidelines to ensure transparency and to avoid any conflicts of interest. The correct timeframe for this disclosure is three years. This period allows for adequate review of past involvement with the property to determine if it could impact the independence or objectivity of the appraisal being performed.

In the context of appraisal ethics and standards, maintaining transparency about past services ensures that both the client and the public can have trust in the appraisal process. By disclosing services rendered in the previous three years, appraisers can help to mitigate any potential concerns about bias or undue influence, thus upholding the integrity of the profession. This requirement is specifically outlined in the Uniform Standards of Professional Appraisal Practice (USPAP), reinforcing the critical nature of ethical behavior in the appraisal field.

The other options present different timeframes that do not align with the established three-year guideline, and therefore do not meet the standard for required disclosure.