A United States citizen and his spouse who is a United States citizen or has lawful immigration status may petition jointly, or an unmarried United States citizen at least twenty-five years of age, may petition for intercountry adoption. At least one petitioner shall be a domiciliary of Louisiana. When one joint petitioner dies after the petition has been filed, the adoption proceedings may continue as though the survivor was a single original petitioner.
La. Ch.C. § 1281.9