Adult adoption
Adult adoption is a form of adoption between two or more adults in order to transfer inheritance rights and/or filiation. Adult adoption may be done for various reasons including: to establish intestate inheritance rights; to formalize a step-parent/step-child relationship or a foster parent/foster child relationship; or to restore the original legal relationship between a person and their biological parent(s), where that person had been adopted by other, adoptive parents previously (and usually as a child, and perhaps without the full/complete consent of the biological parent(s) due to circumstances at the time).