Why can adoption be set aside if a divorce is filed less than one year after adoption by stepfather who adopted spouses children?

Adoption can be set aside if a divorce is filed less than one year after the stepfather adopts the spouse's children due to the potential for a lack of stability and permanence in the newly formed family unit. Courts may view such a quick dissolution as indicative of the adoption being made in haste or under circumstances that do not reflect the best interests of the children. Additionally, some jurisdictions have laws that allow for the annulment of adoptions within a certain timeframe if the adoption was not in good faith or if the adoptive parent is no longer able to fulfill their parental responsibilities.