The Florida single-member operating agreement gives its members a written structure to run the concerned LLC as well as their relationship with each other in this entity. Such an agreement will not be required by the state. However, once this agreement is signed, it can act as evidence during potential formal inquiries as to the validity of the limited liability company, its structure, and its tax status. Thus, it is usually in the best interest of the members of the limited liability company to complete, date, and sign an operating agreement when forming this entity in Florida.