A Washington Petition to Invalidate (Annul) Marriage is a legal process in Washington State that seeks to end a marriage and remove it from the records. This process is available to both spouses, and the petition must be filed in the county where the marriage certificate was issued. The Washington Petition to Invalidate (Annul) Marriage is a court process and requires the petitioner to prove that the marriage should be annulled. There are several grounds for annulment in Washington State, including: • Bigamy: If one spouse was already married when they entered into the marriage, the marriage can be annulled. • Fraud: If either party was tricked into the marriage, the marriage can be annulled. • Mental incapacity: If either spouse was mentally incapable of understanding the marriage, the marriage can be annulled. • Duress: If either party was forced into the marriage, the marriage can be annulled. • Underage: If either party was under the age of 18 when they entered the marriage, the marriage can be annulled. • Physical incapacity: If either party was physically unable to consummate the marriage, the marriage can be annulled. There are two types of Washington Petition to Invalidate (Annul) Marriage: contested and uncontested. In a contested annulment, both parties dispute the grounds for annulment and must present evidence to the court to support their claims. In an uncontested annulment, both parties agree that the marriage should be annulled and do not need to present evidence to the court.