A relative adoption is the adoption of a child who is related by blood or marriage to the prospective adoptive parents, who are the child’s grandparent, aunt, uncle, cousin, sibling, etc. Since the birthparent(s) are surrendering the child directly to you, there will likely be no agency involvement.
However, termination of parental rights of the child’s legal parents must occur either through voluntarily signing a consent or involuntary termination of parental rights by the court based on lack of financial or emotional involvement on the part of the birthparent(s).
You will need an attorney, however, in order to finalize the adoption. Additionally, because a relative is adopting, there is no need for the adoption home study.