The simplest adoption is the step-parent adoption. If the birth mother or birth father agrees to give up his or her parental rights, the step-parent can adopt the child. A more complex type of adoption is where a couple is trying to adopt a child from other birth parents. First, the adopting parents must find a child. There are various agencies which help with this.
Some lawyers know birth mothers who wish to give up their child for adoption.
Second, the adopting parents usually are required to have a home study done. The Department of Human Services can give information on this subject. If you wish to adopt a child, consult an attorney to help facilitate the process.