Disabled applicants must complete form DTE 105E,. Attach this form to the homestead exemption application (form DTE 105A) if the applicant is requesting the homestead exemption based on disability status.Apply for Homestead Exemption, Visit the Clark County Auditor website to learn how to apply for a homestead exemption. There is a real estate homestead exemption available. Please contact the Clark County Auditor's Office at 937-521-1862 for details. 3. Property tax exemptions are savings that contribute to lowering a homeowner's property tax bill.