N.Y. CVP Law § 311-A

§ 311-a. Personal service on limited liability companies. (a) Service\nof process on any domestic or foreign limited liability company shall be\nmade by delivering a copy personally to (i) any member of the limited\nliability company in this state, if the management of the limited\nliability company is vested in its members, (ii) any manager of the\nlimited liability company in this state, if the management of the\nlimited liability company is vested in one or more managers, (iii) to\nany other agent authorized by appointment to receive process, or (iv) to\nany other person designated by the limited liability company to receive\nprocess, in the manner provided by law for service of a summons as if\nsuch person was a defendant. Service of process upon a limited liability\ncompany may also be made pursuant to article three of the limited\nliability company law.\n (b) If service is impracticable under subdivision (a) of this section,\nit may be made in such manner as the court, upon motion without notice,\ndirects.\n