FL S1022

Creates a new statutory procedure allowing a child, the child's mother, or an alleged biological parent to petition circuit court to rebut legal parentage presumptions for children born in wedlock or whose parentage was otherwise established by law.

Requires petitioner to prove by clear and convincing evidence that the alleged parent has demonstrated substantial interest in the child's welfare and that proceeding serves the child's best interest; court must appoint a guardian ad litem or attorney ad litem for the child.

Mandates genetic testing by qualified laboratory if petition advances; a statistical probability of parentage of 95 percent or higher creates a rebuttable presumption of biological parentage.

Court must determine whether the mother's spouse remains the legal parent, parental rights transfer to the biological parent, or both the spouse and biological parent share parental rights based on factors including bonds with child, stability, health, moral fitness, and the child's preference.

Allows court to establish or modify parenting plans and child support orders; for cases with three legal parents, ensures child receives same total child support as under standard guidelines with fair and equitable distribution among obligated parents.