Forms on this website are PDFs with fillable fields. Forms should be downloaded to your computer before filling in the fields.Key signs you need to qualify include having a physical location, employees, binding contracts, regular client meetings, or significant revenue in the state. What is the process for proposing an international affiliation agreement? This guide will inform you of various legal requirements and direct you to additional resources. Download a free Illinois LLC Operating Agreement template (Word, Google Doc, PDF). List LLC Members, profit splits, tax info and more. Operating agreements serve as the backbone of your business, outlining how your LLC will be governed, detailing ownership stakes, and more. Your operating agreement can address how ownership interests in the LLC can be transferred to a trust, offering an extra layer of security. Business Succession.