(805 ILCS 180/1-35)

Sec. 1-35. Registered office and registered agent.

(a) Each limited liability company and foreign limited
liability company shall continuously maintain in this State a
registered agent and registered office, which agent must be
an individual resident of this State or other person authorized to transact business in this State.

(b) A limited liability company or foreign limited
liability company may change its registered agent or the
address of its registered office pursuant to Section 1-36 and the registered agent of a limited liability company or a foreign limited liability company may change the address of its registered office pursuant to Section 1-37.

(c) The registered agent may at any time resign by
filing in the Office of the Secretary of State written notice
thereof and by mailing a copy thereof to the limited
liability company or foreign limited liability company at its
principal office as it is known to the resigning registered
agent.  The notice must be mailed at least 10 days before the
date of filing thereof with the Secretary of State.  The
notice shall be executed by the registered agent, if an individual, or, if a business entity, in the manner authorized by the governing statute.  The notice
shall set forth all of the
following:

(1) The name of the limited
liability company for which the registered agent is acting.

(2) The name of the registered agent.

(3) The address, including street, number, and city of the limited liability company's