Given this situation, the private wayo was made legally binding, provided that both the plaintiff and defendant submitted two copies of wayo deed to legal institutions (Kamakura, Rokuhara Tandai [the office of shogunal deputy in Kyoto], and Chinzei-fu [local government office in Kyushu region] in the case of the Kamakura bakufu), a magistrate in charge of the suit placed the certifying seal on the wayo deed after wayo in question was justified as a result of the examination by the legal institutions, and saikyojo (judicial decisions) and gechijo (commands) to show that contents of the wayo deed were approved were issued to the parties to the suit.
そのため、訴人と論人の双方が訴訟機関（鎌倉幕府では鎌倉・六波羅探題・鎮西府）に対して2通の和与状を提出し、訴訟機関の審査の結果正当な和与と認められた場合には和与状に訴訟担当奉行の証判が押され、和与状の内容を承認したことを示す裁許状・下知状が訴訟当事者双方に交付されることで法的拘束力を有することとなった。