(6) A child who has been determined by a court to have one or more de facto parents is the child of the de facto parent or parents. Such child is also the child of the child's natural or adoptive parents if the child would have been the child under subsection (1) or (2) without the determination of de facto parentage;

(7) If a child has been determined by a valid judgment to have one or 2 parents under the Uniform Parentage Act, the parent or parents determined under that Act are the child's parents for purposes of inheritance;

(8) If a child could have been determined to be the child of one or more parents under the Uniform Parentage Act but such determination has not been made by valid judgment that became final before the death of the person whose estate is being distributed under the laws of intestacy, a post-death determination of parentage under the Uniform Parentage Act may be made by the Probate Court using the standards that would have applied during the life of the decedent;

(9) If a child could have been determined to be the child of de facto parents under the common law but such determination has not been made by valid judgment that became final before the death of the person whose estate is being distributed under the laws of intestacy, a post-death determination of de facto parentage under the common law may be made by the Probate Court using the standards that would have applied during the life of the decedent, except that if a de facto parent is seeking to inherit from a child under the de facto parentage, then the case must be proved by clear and convincing evidence. A child determined under this subsection to have de facto parents is also the child of the natural or adoptive parents if the child would have been the child under subsection (1) or (2) but for the determination of de facto parentage; and

(10) Under this section, a child may not inherit from more than 4 parents or their kin, and no more than 4 parents or their kin may inherit from a child. If a child is determined to have more than 2 parents under this section or if the child is determined to have 2 parents of same gender, then the moiety system does not apply, and the court shall determine heirs in an equitable manner with persons of the same degree of kinship or