Disabled applicants must complete form DTE 105E,. Download the Act 50 Applications(PDF, 1MB) and complete it.A homestead exemption application form ("DTE 105A") is available from the Ohio Department of Taxation. Allegheny County has several programs that may help to reduce or eliminate a property tax bill. 1. Fill in the parcel number of the property for which you are seeking a homestead exclusion. Homestead Exemption. A Democratic state representative's health problems could complicate the vote for speaker of the Pennsylvania House of Representatives.