Georgia Mass Appraisal Solutions & Services

Leaders in Assessment, GIS, CAMA Integrations, and Analysis

What We Do

What We Do

Providing Accurate Appraisals and Reliable Data in Georgia since 2008

GMASS has been a leader in property valuation across the state of Georgia for the past decade. Our mission is to provide fair values using accurate data.

Our firm is comprised of experienced appraisers. We leverage all available technology to provide accurate valuations for all classes of properties. This technology allows us to have an in-depth and integrated platform for mapping and analyzing statistical work. Our entire staff has experience in a Tax Assessor's office. We have the knowledge to provide guidance and staffing in any area related to property assessments.
Developing a Plan of Action, Contract Chief Appraiser, Expert Witness, Appeal Hearings, New Property Tax Law Changes, Staff Training and Workshop Hosting, and much more.

Why Work With Us

With the assistance of our professional team, you will be confident in the quality of work to successfully defend all valuations and compliant with all regulations. Reach out to us today to learn more. Leaders in Georgia Property Tax Assessment and Administration. Providing Accurate Valuations and the best customer service.
"Our job is to help you find what is worth it"


"We are pleased to serve all Georgia counties.
No matter what your needs require, we have a solution!" 

Kristi Reese ~ President



GMASS provides the appraisal solutions and expertise we need. In this booming economy it’s hard to compete with private industry and keep qualified and dedicated appraisers employed. With GMASS I don’t have to worry about Monday morning resignations, rehiring and retraining. With GMASS in place I can depend on our production, quality and customer service goals being met consistently without interruption. From the top to the bottom GMASS has the staff and the solutions that make government better.

Steve Watson

Chief Appraiser, Hall County


Being able to work with a group of individuals who have such a diverse knowledge of mass appraisal really helps to meet all of our appraisal needs. Their knowledge and expertise of numerous programs allows us to focus on the specific needs of our county.

Theresa Gooch

Chief Appraiser, Gilmer County


In the past few years, I have had the pleasure of working with GMASS on a couple of different projects and have formed some firm opinions. The collective experience, knowledge and expertise of the GMASS team is second to none. Every aspect of their process is carried out with the utmost professionalism and the Chief Appraiser is always kept in the loop as to what’s happening at any time. They can be counted on to complete a project as planned, on time and on budget. I haven’t needed their services at my current location (yet), but when I do, GMASS will be my first call.

Wayne Mitchell

Chief Appraiser, Greene County


The valuation of Low Income Housing Tax Credit Properties has been a struggle for years, especially for the smaller counties. The rules and laws for appraising these properties are constantly changing and getting access to the financial information needed to properly appraise these properties can be a challenge. The lack of instruction and guidance on applying the law has made things even more difficult. GMASS has been a very valuable resource for us in resolving these problems. They are very knowledgeable about this type of property and we have complete confidence in their abilities. GMASS has been a pleasure to work with. I highly recommend their services.

Joyce Merritt

Chief Appraiser, Ben Hill


Every member of the GMASS team demonstrated professionalism and dedication to this project. Our data has never looked better and the BOA is very pleased. GMASS worked thru this project in a manner that was beyond expectations. Great team, great job!! I look forward to continuing this partnership in the future.

Beth Harding

Bleckley Chief Appraiser


We have partnered with GMASS for almost 15 years and have consistently found them to be professional, knowledgeable, and proficient. We recently transitioned to a vertical integration of services in which they also perform Chief Appraiser duties from field appraisals all the way to the appeals process and we work with GMASS closely on an almost daily basis. They have been highly competent and responsive to our individual office needs. In the past, we have used GMASS for commercial services, rural land schedules, maintenance, and multiple revaluations, and this company has delivered dependable results every time.

Nette McLean

Telfair Chief Appraiser