The court may under such circumstances set aside a presumption or prior determination of paternity if it finds that setting aside a presumption or prior determination of paternity is in the best interest of the child

The court may consider any of the following factors in determining the best interests of the child: (1) The length of time between the proceeding to adjudicate parentage and the time that the presumed or legally determined father was placed on notice that he might not be the genetic father; (2) The length of time during which the presumed or legally determined father has assumed the role of father of the child; (3) The facts surrounding the presumed or legally determined father's discovery of his possible nonpaternity; (4) The nature of the relationship between the child and the presumed or legally determined father; (5) The age of the child; (6) The harm or benefit that may result to the child if the presumed or legally determined paternity is successfully disproved; (7) The nature of the relationship between the child and any presumed or legally determined father; (8) The extent to which the passage of time reduces the chances of establishing the paternity of another man and a child-support obligation in favor of the child; and (9) Any additional factors deemed by the court to be relevant to its determination of the best interest of the child. Source: SL 2013, ch 119 , § 18.