(a) An individual presumed to be a parent or an alleged genetic parent may sign a denial of parentage only in the limited circumstances set forth in this section.
(b) A denial of parentage shall be valid only if:
(1) An acknowledgment of parentage by another individual has been filed pursuant to this chapter;
(2) The denial is in a record and is witnessed and signed by at least one other individual; and
(3) The presumed or alleged genetic parent executing the denial has not previously:
(i) Acknowledged parentage, unless the previous acknowledgment has been rescinded pursuant to § 15-8.1-307, or successfully challenged the acknowledgment pursuant to § 15-8.1-308; or
(ii) Been adjudicated to be the parent of the child.