COMPLAINT AGAINST THE VALUATION OF REAL PROPERTY MUST BE SUBMITTED BETWEEN JANUARY 1 AND MARCH 31 The process consists of the following steps: Provide up to three parcels in the same taxing district to be filed on each complaint. Provide Owner/Complainant and contact information. Provide your opinion of Market Value for each property. List your reasons for filing the complaint. (Additional evidence can be submitted online through the BOR Evidence Portal or through postal mail.) Provide sale and improvement information, and if you intend to present the testimony or report of a professional appraiser. Upon submission, you will receive an e-mailed copy of your complaint. If you do not wish to file electronically, you may download and complete the fillable PDF, print and mail it in. Mailed complaints and/or documentation, may be sent to: KARL L. KEITH MONTGOMERY COUNTY AUDITOR P.O. Box 972 451 West Third Street Dayton, OH 45422-1021