New York Laws
Article 3 - Jurisdiction and Service, Appearance and Choice of Court
303 - Designation of Attorney as Agent for Service.

§ 303. Designation of attorney as agent for service. The commencement
of an action in the state by a person not subject to personal
jurisdiction is a designation by him of his attorney appearing in the
action or of the clerk of the court if no attorney appears, as agent,
during the pendency of the action, for service of a summons pursuant to
section 308,in any separate action in which such a person is a defendant
and another party to the action is a plaintiff if such separate action
would have been permitted as a counterclaim had the action been brought
in the supreme court.

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