You need to file a petition for adoption in the municipality where you and the child to be adopted reside.
The filing fee ranges by state and can cost anywhere between $20 and $300.The petition itself is somewhat detailed and courts are specific about how they want the documentation.
How much does it cost for a stepparent to adopt a child?
Although it varies per state, in total, it typically costs $1500-$2500 to adopt a stepchild, even if you have the other parent’s consent, and even if you don’t use a lawyer (because one will often be appointed for the child). All courts have a process for waiving some or all of the filing fees.
Do I need a lawyer to adopt my stepchild?
If you want to adopt a stepchild, you must have the consent (or agreement) of both your spouse and the child’s other parent (the noncustodial parent) unless that parent has abandoned the child. Some State adoption laws do not require the other parent’s consent in some situations, such as abandonment.
How do you legally adopt a spouse’s child?
First, the stepchild’s other biological parent must consent to the adoption and relinquish his or her parental rights, which is done by signing an “Adoption Surrender” in the presence of two witnesses and a notary public. Then, you must file a “Petition for Adoption” along with any supporting documents.
Photo in the article by “Wikipedia”