Wayo authorized by the bakufu was assured by "the crime of violating the command" statutory principle which imposed penalties such as territory seizure on the interested party who violated wayo conditions.
幕府の許可を受けた和与は「下知違背之咎（げちいはいのとが）」の法理によって保障され、当事者が和与の条件に違反をすれば所領没収などの刑罰が課された。