I was recently at a family law and expert witness luncheon where a big topic of discussion was Daubert, specifically how expert witnesses get excluded from testifying before they ever take the stand.
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What struck me was not how complicated Daubert is. It is how often qualified experts accidentally knock themselves out because they do not understand how judges actually evaluate expert testimony.
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And yes, this applies to real estate appraisers, not just doctors or psychologists.
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If you do litigation work such as divorce, estate, partition, or disputes, this is something you need to understand.
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What Is Daubert in Plain English?
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Daubert is the legal standard judges use to decide whether an expert’s opinion is allowed into evidence.
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It is not about whether:Â
-You are licensed
-You have been appraising for 20 years
-You have testified before
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Daubert is about the reliability of methodology.
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Under Daubert, the judge acts as the gatekeeper. If the judge decides your opinion is not based on reliable methods, the testimony never reaches the jury.
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That is the end of the road.
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What Judges Actually Care About
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Courts evaluating expert testimony focus on questions like:
-Is the methodology recognized and accepted in the profession?
-Can the approach be tested and explained?
-Was it applied consistently?
-Are standards followed?
-Is the opinion grounded in data rather than advocacy?
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For appraisers, this means USPAP compliance alone is not enough if you cannot clearly explain why you did what you did.
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How Appraisers Accidentally Get Excluded
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Most appraisers do not get excluded because they are unqualified.
They get excluded because they:
- Skip explaining why a valuation method was chosen
- Apply adjustments without analytical support
- Use experience as a substitute for explanation
- Reach conclusions first and justify them later
- Drift into advocacy instead of remaining neutral
- Opine beyond the scope of the appraisal assignment
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Judges do not reject appraisers. They reject shortcuts.
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The Good News: Courts Allow Judgment If You Explain It
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Valuation is not a hard science. Courts understand that.
Just like other expert disciplines that rely on professional judgment, appraisers are allowed to do the same, as long as:
- The methodology is customary in the appraisal profession
- The reasoning is transparent
- The data supports the conclusion
- The appraiser stays within the assignment scope
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If the judge understands how you moved from data to analysis to value, you are usually fine.
If the judge does not understand it, you may never get the chance to explain it later.
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Practical Action Tips for Appraisers
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If you do or want to do expert witness work, here is how to stay Daubert-safe.
- Slow down your methodology section
Explain why you chose the sales comparison approach, income approach, or a specific technique. Do not just state that you used it. - Show your work
Adjustments, assumptions, and conclusions should all be traceable back to data or accepted appraisal practice. - Be consistent
Judges notice inconsistencies quickly. Consistency builds credibility. - Separate analysis from advocacy
You are not there to help one side win. You are there to explain value. - Stay in scope
Avoid legal conclusions, speculation, or commentary outside valuation. - Be ready to educate the judge
Assume the judge does not understand appraisal theory. That is not a weakness. It is your role as the expert.
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Final Thought
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Daubert is not something appraisers should fear.
It rewards appraisers who follow accepted methodology, think before concluding, explain their reasoning clearly, and treat expert work differently than lender work.
Most appraisers do not lose Daubert challenges because they are wrong.
They lose because they did not explain how they got there.
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Want to Get Better at Litigation and Non-Lender Work?
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If you are doing expert witness, estate, divorce, or private appraisal work, you should not be operating in a vacuum.
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The Appraisal Referral Network is a nationwide community of appraisers focused on non-lender assignments, litigation work, and peer-to-peer referrals. It is a place to learn from other appraisers who are actively doing this type of work and to receive referrals when other appraisers need help outside their coverage area or expertise.
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If you want to grow your non-lender practice, sharpen your expert witness skills, and connect with appraisers across the country who actually understand this work, join the Appraisal Referral Network.
