The timeline varies significantly depending on the type of adoption. Stepparent adoptions — where the non-custodial parent consents — can sometimes be completed in a few months. Foster care adoptions through DCYF typically take longer due to state requirements including the 8 to 10 week preparation series and home study. Domestic infant adoptions depend heavily on matching timelines and birth parent consent. An attorney can give you a realistic estimate based on your specific situation.