Residential Classification Examples ; Class 2-78, Two or more story residence, up to 62 years, 2,001 to 3,800 sq. ft. What do I need first?Complete the entire grid analysis (except sale data). Submit a property record card for each property. For transfers of a beneficial interest of a land trust, complete the form substituting the words "assignor" for "seller" and. "assignee" for "buyer. How to fill out the Illinois Residential Lease Agreement Sample Document? 1. Enter the landlord's and tenant's full names and addresses. 2. An Illinois purchase agreement is a standard contract for selling real estate from one party to another. Selling a house without a realtor involves preparing prelisting, listing, disclosure, negotiation and closing paperwork.