Disabled applicants must complete form DTE 105E,. You must file your homestead exemption application with your county tax officials.To apply for the Homestead Exemption please fill out the application and mail it to our office at 231 Main Street. , Suite 1A, Chardon, Ohio 44024. This Video Shows you How to Complete an Application for Homestead Exemption. DTE Form 105B – Continuing Homestead Exemption Application Form for Senior Citizens,. Disabled Persons, and Surviving Spouses. 4. Douglas County has additional exemptions. Must complete and submit DTE Form 105H, Addendum to the Homestead Exemption Application for Senior Citizens, Disabled Persons and Surviving Spouses.