Washington Complaint — Third Party is a legal complaint form commonly used in the state of Washington, in the United States, to initiate a lawsuit against a third party (a defendant who is not a party to the original action). It is a form to be completed by the plaintiff, who is the party initiating the legal action, and then filed with the court. The complaint outlines the legal basis for the plaintiff’s claim and the damages sought. There are three types of Washington Complaint — Third Party: tort, contract, and other civil claims. A tort is a civil wrong or injury that is not related to a contract and is usually caused by negligence, while a contract is an agreement between two or more parties in which each promises to do something in exchange for something else. Other civil claims may include breach of fiduciary duty, fraud, or misrepresentation.