There is a vast number of resources available to review before you consider starting a new company. Most are all free such as the Small Business Administration (SBA), The Service Corps of Retired Executives (SCORE), or the Small Business Guidance Washington, Small Business Guide, just to name a few.
Although, these resources will state that you need an Operating Agreement and all suggest that you consult with an attorney, and or accountant. Why is an Operating Agreement so Important? It is the legal document that creates the protections of owners and operators from being personally liable for the conduct and operations of their businesses.
The primary purpose of any operating agreement is to define how the business operates and who is responsible. The basic only difference between an LLC Operating Agreement and the Articles of Incorporation or Articles of Organization is that Operating Agreements does not just cover opening the business, but how and the conditions to close the business. Similar to Articles of Incorporation or Organization is it is the document that separates the owners, members, managers, interest holders, agents, or officers from the liability of being sewed while in the process of operating a business. Your operating agreement should basically include what is know as company bylaws that details out how you run your company.