New Property Assessments have been released to property owners in Columbus. If you have questions or disputes on the value assigned to your property, you may attend the Open Book session on Thursday, July 27 from 3 pm to 7 pm at City Hall. If you have any questions, you can speak with the City Assessor by contacting him directly. Luke Mack, Associated Appraisal Consultants, Inc. Phone - 800-721-4257 or via email at: info@apraz.com.