2013 New York Consolidated Laws
CVP - Civil Practice Law & Rules
Article 3 - (301 - R328) 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.