New York Consolidated Laws, Limited Liability Company Law - LLC § 412. Agency of members or managers

(a) Unless the articles of organization of a limited liability company provide that management shall be vested in a manager or managers, every member is an agent of the limited liability company for the purpose of its business, and the act of every member, including the execution in the name of the limited liability company of any instrument, for apparently carrying on in the usual way the business of the limited liability company, binds the limited liability company, unless (i) the member so acting has in fact no authority to act for the limited liability company in the particular matter and (ii) the person with whom he or she is dealing has knowledge of the fact that the member has no such authority.

(b) If the articles of organization of a limited liability company provide that management shall be vested in one or more managers:

(c) An act of a member or manager that is not apparently for the carrying on of the business of the limited liability company in the usual way does not bind the limited liability company unless authorized in fact by the limited liability company in the particular matter.

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