California Code, Corporations Code - CORP § 17703.01

(a) Unless the articles of organization indicate the limited liability company is a manager-managed limited liability company, every member is an agent of the limited liability company for the purpose of its business or affairs, and the act of any member, including, but not limited to, the execution in the name of the limited liability company of any instrument, for the apparent purpose of carrying on in the usual way the business or affairs of the limited liability company of which that person is a member, binds the limited liability company in the particular matter, unless the member so acting has, in fact, no authority to act for the limited liability company in the particular matter and the person with whom the member is dealing has actual knowledge of the fact that the member has no such authority.

(b) If the articles of organization indicate that the limited liability company is a manager-managed limited liability company, each of the following applies:

(c) No act of a manager or member in contravention of a restriction on authority shall bind the limited liability company to persons having actual knowledge of the restriction.

(d) Notwithstanding the provisions of subdivision (c), any note, mortgage, evidence of indebtedness, contract, certificate, statement, conveyance, or other instrument in writing, and any assignment or endorsement thereof, executed or entered into between any limited liability company and any other person, when signed by at least two managers, or by one manager in the case of a limited liability company whose articles of organization state that it is managed by only one manager, is not invalidated as to the limited liability company by any lack of authority of the signing managers or manager in the absence of actual knowledge on the part of the other person that the signing managers or manager had no authority to execute the same.