Section 16-831.03 - Action for custody of a child by a de facto parent(a) A de facto parent may file a complaint for custody of a child or a motion to intervene in any existing action involving custody of the child.(b) An individual who establishes that he or she is a de facto parent by clear and convincing evidence shall be deemed a parent for the purposes of §§ 16-911, 16-914, 16-914.01, and 16-916, and for the purposes of this chapter if a third party is seeking custody of the child of the de facto parent.(c)(1) All proceedings involving a parent and a de facto parent, including an action for child support, shall be governed by §§ 16-911, 16-914, 16-914.01, and 16-916.(2) A custody proceeding involving a third party and a de facto parent shall be governed by the provisions of this chapter.Sept. 20, 2007, D.C. Law 17-21, § 2(b), 54 DCR 6835; Mar. 25, 2009, D.C. Law 17-353, § 217(d), 56 DCR 1117.