Session 1: Platform-Agnostic Equalization Valuation Modeling is Now Live (and 100% Free!!)

 We’re Live — Session 1 is Now Available (100% Free)

Platform-Agnostic Equalization Valuation Modeling: Tools for Assessing Staff, VABs, Review Commissions & Independent Consultants

Today marks the official launch of our new 8-session series.

If you work for a small or mid-sized assessing jurisdiction and are trying to understand how the CAMA system produces values, serve on a Review Commission, are part of a Value Adjustment Board, or work as an independent consultant, this series was built for you.

Session 1 is completely free and unlocked for everyone.

In this foundational session, we demonstrate a practical, transparent, Excel-based (and platform-agnostic) approach to building Equalization Valuation Models using your jurisdiction’s own Just Values.

In Session 1, you will learn:

· How to construct a proper equalization dataset

· The complete 2-Pass Forensic Outlier Protocol

· A striking real-world “Wake-Up Call” sample showing current misalignments

· How the model improves dramatically after cleaning (R² to 93.78%, much tighter uniformity)

· Just Value Ratio (JVR) diagnostics with clear interpretation

·        Step-by-step Excel instructions (Data Analysis ToolPak)

This is your independent, defensible toolset — no vendor lock-in required. Works in Excel for smaller offices and scales to SPSS/SAS for larger jurisdictions.

Download Session 1 for Free Now (Patreon or Substack) →

https://www.patreon.com/SidSom/posts/platform-tools-161198809

https://sidsom.substack.com/p/platform-agnostic-equalization-valuation-ea3?r=7xq68s

Fellow coffee lovers: You can also support this ongoing work (and share a virtual coffee with me) via Buy Me a Coffee. Every bit helps keep this mission — helping dreamers achieve their goals — moving forward.

https://buymeacoffee.com/sidsom/platform-agnostic-equalization-valuation-modeling-tools-assessing-staff-vabs-review-commissions-independent-consultants

A portion of the proceeds from the full series will support charitable causes.

The full 8-session series will continue weekly, taking you from model development to powerful applications: Regression Comps (bottom-up) and Ratio Challenges (top-down).

This is structural empowerment in the back end of mass appraisal.

If you care about fair, transparent, and defensible property valuation, join us.

Session 1 is available right now. Let’s get started.

Tag colleagues who should read this post.

The Multi-Million-Dollar CAMA Vendor Trap is Over for Smaller and Mid-Sized Jurisdictions

If you’re an analyst, assessor, or independent consultant working in a jurisdiction with 50K to 200K residential parcels, you’ve been told a lie: that you need expensive, opaque black-box software to achieve real valuation equity.

You don’t.

You just need a standard copy of Microsoft Excel and a highly disciplined econometric protocol.

Next Tuesday, June 16th, I’m launching an 8-session series on Patreon: Equalization Valuation Modeling for Smaller and Mid-Sized Jurisdictions.

To prove it, Session 1 is 100% free and unlocked for everyone.

In this opening session, I’ll hand you the complete step-by-step 2-Pass Forensic Framework to:

1. Strip out valuation noise and legacy data defects

2. Drive your model toward true BLUE status (Best Linear Unbiased Estimator)

3. Produce a powerful Just Value Ratio (JVR) equity diagnostic that reveals where your roll stands

This is the ultimate resume builder and job-security tool for technical professionals who often serve as the sole modeling and appraisal team in their office.

No vendor contracts. No black boxes. Just a transparent, defensible methodology you can own and control.

Session 1 drops Tuesday morning — complete with dataset examples, Excel execution steps, and the full forensic protocol.

Keep an eye on this feed.

We’re bringing structural liberation to mass appraisal — one disciplined model at a time.