Here is a Membermanaged Operating Agreement template available in 3 formats. This can be used for a Single-Member LLC or a Multi-Member LLC.You can write your own agreement, or fill out our attorney-drafted template to generate your multi-member LLC's operating agreement for free. Streamline the creation of a legally binding Illinois LLC Operating Agreement with PandaDoc. Access a template for your Limited Liability Company. You can use one of our attorney-drafted templates to fill out, save, and download your operating agreement for free. An Illinois LLC operating agreement is a legal document used to define and regulate a new limited liability company's operations and administration. Create and personalize your LLC operating agreement template with Form Pros in 3 easy steps. An Illinois LLC operating agreement is a document that formalizes the ownership, management, and operations of a limited liability company (LLC) in Illinois. The Articles of Organization must include the following information: • LLC name;.