Greenfield Advisors Named to Inc. Magazine’s List of 5,000 Fastest Growing Companies

Greenfield Advisors is honored to be listed on the Inc. 5000, which is Inc. Magazine’s annual list of the fastest growing companies in the U.S. The real estate and financial analysis firm was ranked #2,800 in its first appearance on the list.

Greenfield Advisors had a busy 2015 as it […]

Georgia Association of Assessing Officials Conference Highlights

I attended the Georgia Association of Assessing Officials (GAAO) 55th Annual Summer Conference on Jekyll Island, Georgia, July 20 and 21. If you are not familiar with Jekyll Island, it was the summer playground for some of the wealthiest families in America in the 1800s and early 1900s. Families […]

IPTI Mass Appraisal Valuation Symposium – Part Deux

Last week, I discussed the first day of sessions at the 10th IPTI Mass Appraisal Valuation Symposium in Amsterdam. Day 2 had several sessions on the role of technology in property tax assessment. I found IPTI COO Ruel Williamson’s presentation on the history of technology particularly interesting. I also enjoyed Dr. Douw […]

Day One of the IPTI Mass Appraisal Valuation Symposium


Amsterdam… what an awful place to have a conference! I’m kidding of course. This is my third trip to Amsterdam, and the city looks pretty much as it did the last time I was here (14 years ago when I was on my way to a regional science conference at […]

RICS Summit of the Americas 2015, Part 2

There are about 17,000 taxing jurisdictions in the United States. It’s an overwhelming number, but it helped put in perspective all the topics discussed during the RICS Summit of the Americas this year. I blogged previously about the first part of my experience at the conference.

One of the sessions […]

AVMs 101 – What is an AVM and how do we use them?

An automated valuation model or AVM is a computer program that uses statistical models coupled with a database to estimate the market value of a property as of a specific date. The accuracy of an AVM depends on the data used and the skill of the modeler who produced […]

Advanced Statistical Modeling in Real Estate Appraisal

This presentation provides a basic familiarity with the use of hedonic regression modeling (i.e., mass appraisal), survey research, meta-analysis, and expert systems in real estate appraisal. It discusses how these methods fit in the appraisal body of knowledge and comport with the Uniform Standards of Professional Appraisal Practice (USPAP) […]

An Iterative Approach to Minimizing Valuation Errors Using an Automated Comparable Sales Model

This paper describes a method for automating sales comparison valuations by choosing a small sample of comparable sales from a submarket of similar properties and adjusting their prices based on differences between sale and subject property characteristics. This logic is similar to that used in a traditional sales comparison […]

Valuation of Impaired Land: Greenfield Advisors Experience with Contaminated Sites

This paper reviews issues related to estimating property value effects from contaminated sites. Industrial economies release millions of chemicals into air, soil, and water with adverse effects on human health, other species, future community economic development, and private property values. Hundreds of thousands of parcels are damaged by contamination […]

Appraising Real Estate in Complex Environmental Class Actions: An Expert’s View

Class actions dealing with real property contamination often require some method of valuing the properties. Individual appraisals on those properties are not required; mass appraisal methods meet both the Frye and Daubert tests and can be superior to individual methods in class actions or mass torts. Professional appraisal standards […]

Real Estate Issues in Class Certification

Class actions dealing with real estate matters often require some method of valuing the properties in question. Individual appraisals on those properties are not required, according to John A. Kilpatrick, Ph.D., an expert in real estate appraisal and analysis. Kilpatrick says that professional appraisal standards provide standard rules for […]