New York Laws
Title 3 - Enforcement
77-F - Simultaneous Proceedings.

ยง 77-f. Simultaneous proceedings. If a proceeding for enforcement
under this title is commenced in a court of this state and the court
determines that a proceeding to modify the determination is pending in a
court of another state having jurisdiction to modify the determination
under title two of this article, the enforcing court shall immediately
communicate with the modifying court. The proceeding for enforcement
continues unless the enforcing court, after consultation with the
modifying court, stays or dismisses the proceeding.