You (or the purchaser or transferee) must complete Form CBS-1, Notice of Sale, Purchase, or Transfer of Business Assets. Find asset purchase agreement lawyers for Chicago, IL to hire.No cost to post a project to get multiple bids in hours to compare before hiring. Contact our Yorkville asset purchase agreement lawyer for assistance with commercial real estate transactions in Kendall County. An asset purchase agreement is a written legal instrument that formalizes the purchase of a business or significant business asset.