(1) The effects of the adoption of a person of full age do not extend to the relatives of the adoptive parent. The spouse or life partner of the adoptive parent does not become a relative by marriage of the person adopted, and the spouse or life partner of the person adopted does not become a relative by marriage of the adoptive parent.
(2) The rights and duties arising from the relationship between the person adopted and their descendants and their relatives are not affected by the adoption except as otherwise provided by law.
(3) The adoptive parent is obliged to pay maintenance to the person adopted and the descendants of the person adopted before the blood relatives of the person adopted.