Copies of all policy forms for mutual companies, a separate proxy signature line for the insured to sign, if applicable;. Personal property insurance is designed to financially protect your belongings against a variety of hazards – fires, vandalism, theft, power surges.Here are some guidelines to help you navigate the complexities of homeowner insurance in Illinois and make informed decisions. Fill out a claim report and describe your loss. Proof of ownership is documentation that proves an item belonged to you before it was damaged or stolen. If you have experienced a moderate to total loss and need assistance with completing your personal property inventory, our Contents Inventory Aids can be used. Home insurance can help protect your property wherever you are in Illinois, whether that's Chicago, Aurora, Rockford, Springfield or anywhere in between. You should call the Assessor's Office at (312) 443-7550 to be sure you are receiving all the property tax exemptions for which you are entitled. How is property taxed in Illinois? Every three years, your local County Assessor figures out the "fair market value" of your property.