A Washington Petition to Disprove Parentage of Presumed Parent is a legal document used to challenge the legal parentage of a presumed parent. This petition is filed in court by someone who believes that he or she is not the legal parent of a child. It is most commonly used in cases of disputed paternity. This petition can also be filed by someone who believes that they are not the legal parent of a child due to a distributed birth or adoption. The Washington Petition to Disprove Parentage of Presumed Parent is a legal document that can be used to challenge the legal parentage of a parent. This petition is usually filed in Washington State. The purpose of the petition is to establish legal parentage or to disprove the parentage of an alleged parent. It is also used to request a court order to establish a child’s legal parentage. There are two types of Washington Petition to Disprove Parentage of Presumed Parent: the Petition to Disprove Parentage and the Petition to Establish Parentage. The Petition to Disprove Parentage is used to challenge the legal parentage of a parent and the Petition to Establish Parentage is used to establish a child’s legal parentage.