Beyond the Median is officially published!
I’m pleased to announce that my new
book is available:
Beyond the Median: How to Unmask the
Multi-Million Dollar Appeals Tsunami in Modern Mass Appraisal
Today marks a critical shift in how we
evaluate, audit, and defend property tax assessment rolls.
For decades, assessing offices and
valuation professionals have taken shelter behind a single statistical shield: aggregate
central tendency. As long as median ratios hover near 1.00 and overall
Coefficients of Dispersion (COD) meet basic benchmarks, assessment rolls are
certified as compliant.
The uncomfortable truth? A healthy
median is often a dangerous illusion.
Beneath smooth aggregate averages,
traditional single-entry CAMA models (a sales-based approach that generates
Just Values across the entire Tentative Roll with limited population-level
checks and balances) routinely embed a silent, structural "double
whammy":
1. Severe over-assessment concentrated on entry-level and
lower-value homes—triggering an uncontrollable tsunami of tax appeals and Value
Adjustment Board petitions.
2. Massive under-assessment on luxury and high-end
assets—allowing billions in baseline property tax wealth to vanish untaxed.
What
You Will Learn in Beyond the Median
This book moves past surface-level
metrics to deliver an immediately usable, mathematically defensible,
non-black-box solution that requires zero changes to existing CAMA software:
· The
Double-Entry Mass Appraisal (DEMA™) Framework: A practical two-step population
calibration model to audit and equalize values outside legacy software.
· The
Ten Commandments of Valuation Modeling: A complete specification protocol enforcing
strict data sanity, dual variable governance, simultaneous time
parameterization, and formal OLS assumption testing for true BLUE status.
· Extended
Percentile Audits & Champ-Challenger Diagnostics: How to use 10th-to-90th percentile
audits to identify hidden tail skewness and pit legacy CAMA models ("the
Champ") against population-calibrated econometric engines ("the
Challenger").
Get
Your Copy Today
Payhip (PDF Edition):
Amazon (Kindle, Paperback, and Hardcover):
https://www.amazon.com/dp/B0HCJY2X2K
Thank you to everyone in the mass
appraisal, AVM, and property tax communities for your ongoing support,
feedback, and dedication to constitutional valuation equity.
Let’s move beyond the median together.
#MassAppraisal #AVM #CAMA #PropertyTax
#Econometrics #RealEstateValuation #AssessmentEquity #PublicFinance
#BeyondTheMedian #BookLaunch #SaveTheChildren #DataAnalytics
