Section 30-3B-203 - Jurisdiction to modify determinationExcept as otherwise provided in Section 30-3B-204, 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 30-3B-201(a)(1) or (2) and:
(1) The court of the other state determines it no longer has continuing, exclusive jurisdiction under Section 30-3B-202 or that a court of this state would be a more convenient forum under Section 30-3B-207; 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.Ala. Code § 30-3B-203 (1975)