Some state statutes only provide for adult adoption if the person to be adopted is of diminished capacity. Some states require the consent of the spouse of the person to be adopted (if married), some require notification of biological parent(s), and some require nothing more than the consent of the adult parties.
An adult may not adopt another adult in Illinois unless the person to be adopted has lived with the prospective adopter for at least two years.
Only those who are permanently disabled or retarded or those who established a foster child relationship or stepchild relationship while the person to be adopted was still a child may be adopted in Ohio.
Louisiana allows the adoption of adults by creating and registering a private agreement between the two parties.
Louisiana Statute:RS 9:461
Right of adoption; conditions, limitations, and procedure; court order.
A/ Any person eighteen years or older may adopt any person over the age of seventeen years, according to the following conditions, limitations, and procedure:
1. The adoption shall be effected by the execution of a notarial act signed by:
A. The adoptive parent or parents and the person to be adopted when the person to be adopted is a major or an emancipated minor.
B. The adoptive parent or parents and the duly appointed curator when the person to be adopted is an interdicted major.
C. The adoptive parent or parents and the living parent or parents or guardian or tutor, or a tutor ad hoc appointed for the purpose, of the person to be adopted when the person to be adopted is an unemancipated minor over the age of seventeen years.
Kitkat22-let's imagine that:
"Hello! I am John Doe, I am 18 and this is my legal daughter-she is 17"-haha... Funny but... legal in Louisiana