All owners of business personal property must complete and return a personal property declaration to the Assessor no later than November 1st annually. Filing Requirement – This declaration must be filed with the Assessor of the town where the personal property is located.Anyone operating a business in Franklin County is required each year to provide a listing of personal property to the. The Mitchell-Lama program provides affordable rental and cooperative housing to moderate- and middle-income families. The Franklin County Tax Assessor's Office is responsible for listing and assessing business and professional property for ad valorem taxation. Complete all sections at the top of the form, whether or not they are specifically addressed in these instructions. This booklet explains many of these laws you need to know and provides resources where you can find more information about landlord and tenant issues. About This Property. Newly renovated four bedroom on Franklin Ave. Those who own tools and equipment used in a trade or business should list.