The legal requirements for child adoption may vary significantly from one state to another, especially the state where the adoptive parents reside in. It is a common misconception that only married couples can adopt a child. In reality, even a single individual can do the same. However, in a few states, it is illegal for homosexuals (even if they are married and have domestic partners) to adopt children. Besides that, it is also a false assumption that only children can be adopted. In reality, adults who have special needs may also be adopted.