§ 551-203. Jurisdiction to modify determination
JURISDICTION TO MODIFY DETERMINATION
Except as otherwise provided in Section 16 of this act, [FN1] a court of this state may not modify a child custody determination made by a court of another state unless a court of this state has jurisdiction to make an initial determination under paragraph 1 or 2 of subsection A of Section 13 of this act [FN2] and:
1. The court of the other state determines it no longer has exclusive, continuing jurisdiction under Section 14 of this act [FN3] or that a court of this state would be a more convenient forum under Section 19 of this act; [FN4] or
2. A court of this state or a court of the other state determines that the child, the child’s parents, and any person acting as a parent do not presently reside in the other state.