All owners of business personal property must complete and return a personal property declaration to the Assessor no later than November 1st annually. You must also list all real property owned in the city or town on January 1.Anyone operating a business in Franklin County is required each year to provide a listing of personal property to the. Probate is the process of proving that the Will is valid (legally acceptable). During probate, the Will must be proved to the satisfaction of the Court. How do I fill this out? This section will guide you on how to fill out the Franklin County Business Personal Property Itemized Listing form. The Franklin County Tax Assessor's Office is responsible for listing and assessing business and professional property for ad valorem taxation. Filing Requirement – This declaration must be filed with the Assessor of the town where the personal property is located.