I did a relocation appraisal earlier this year. The house was nice, but a nine year old home surrounded by new home construction in the same subdivision and hundreds of sales in surrounding subdivisions. The nice couple met me at the door and told me specifically they needed $450,000. They had paid $425,000 the year before. Well, when I researched the similar age homes from the subdivision, the opinion of value was nowhere near their expected value. The new home sales in the subject subdivision did not support their previous sales price. This was in my town, so I know the market very well. The second appraiser used new home sales and came in $30,000 higher than I did (still way below the $450,000). They did the typical rebuttal letter and why didn't you use these sales from the other appraisal? I stood firm because the similar age/size sales in the subject subdivision supported my value. They got a third appraisal for exactly the second appraiser's value. They listed it for $20,000 above their value and $50,000 above my value. I watched the property. Relocation value was needed for under 120 days. At 90 days, they dropped the price. At 120, 150, 180 days they dropped the price. At 216 days the home has a stigma of "something must be wrong with this property" and they dropped the value to my suggested list price. They then dropped it from the market that week. If the property does not sell, you don't get scoring on your value versus the actual sales price. If they had listened to me, they would have sold the property within the 120 day time period, but now I get no credit for being right.
I told this story because this is how appraisers get a bad reputation and the data gets skewed against us. Nobody complains if you are over the projected price, everybody complains when you are below their projected price. It doesn't matter, the race, geographical competence or experience of the appraiser. The sellers were white. They thought I was the perfect appraiser for the job because I had 30+ years of experience and lived in their town until they saw my value.
I must have had relocation bias.