As Chief Appraiser, John is responsible for quality control and compliance which includes the appraisal escalations. vendor quality control, client escalations, and mandatory reporting. He is a Certified Residential Appraiser in 11 states, a Registered Property Tax Agent in Arizona, and a Qualifying and Continuing Education Instructor for multiple course providers. Dingeman is the Past President of the National Association of Appraisers and the Coalition of Arizona Appraisers. He has also served on several boards, including the Arizona Board of Manufactured Housing, Phoenix Village Planning Committee, Homeowners Association and a charitable organization supporting foster children in Arizona called Arizona Helping Hands.