In New York State, an individual may adopt a person over the age of 18. This grants the person over the age of 18, the legal treatment of a biological child. Adult adoption often occurs for the purpose of establishing legal rights, including inheritance or recognizing a parent-child relationship. New York State does not have strict laws governing who is eligible to adopt as well as who is eligible to be adopted. For instance, in certain states, an adoptee must be a minimum of 10 years younger than the adopter. New York State only requires that the adoptee agrees to the adoption.