Appraisers heavily rely on comparable sales (comps) when determining a home's value. Unexpectedly high or low sale prices of nearby properties that occurred shortly before the appraisal can sway the appraiser's valuation. Sudden market fluctuations or limited recent sales data in the area can make it challenging to establish a consistent baseline, impacting the accuracy of the home appraisal.Appraisers heavily rely on comparable sales (comps) when determining a home's value. Unexpectedly high or low sale prices of nearby properties that occurred shortly before the appraisal can sway the appraiser's valuation. Sudden market fluctuations or limited recent sales data in the area can make it challenging to establish a consistent baseline, impacting the accuracy of the home appraisal.