A judge's role in the adoption process is to make any needed changes in the child's legal status. While a waiting child is in foster care, the child's case is usually reviewed periodically in court, to determine whether the goal should be reunification with the birth family or adoption. If the goal is changed, it must be done by a judge. A family court judge will make the decision to terminate parental rights of the birthparents and will preside over the finalization hearing and issue the adoption decree.
Now if you wish to go it alone, there are ways to do so. One such way is to utilize the services of a Do-it-yourself adoption service such as RapidAdoption.com. For a reasonable fee, the fine folks at RapidAdoption.com will complete all of the necessary paperwork for the adoption in your state. They will even do it if the child is in a different state than you. They have been doing legal paperwork since 1998 and have prepared 1000’s of legal documents in all 50 states. But their service is only available in the United States and only with domestic adoptions. So if you reside outside of the United States or are adopting from another country, then this is not an option for you.