19-A M.R.S. §1747: Jurisdiction to modify determination

Except as otherwise provided in section 1748, 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 section 1745, subsection 1, paragraph A or B and:

1. Jurisdiction of other state; more convenient forum. The court of the other state determines it no longer has exclusive, continuing jurisdiction under section 1746 or that a court of this State would be a more convenient forum under section 1751; or

2. Not residents of other state. 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.