I am an adult femaie living in SC. I was adopted by my mother's second husband when I was around 5 years old. My mother and adoptive father divorced when I was about 13. I have no real relationship with my adoptive father but I do have a relationship with my biological father (he and my mother are in a romantic relationship and have been for around 8 years). Can I reverse or nullify the adoption so I can have my name changed back on my birth certificate, etc?
Divorce / Separation Lawyer
You do not need to nullify an adoption to change your name. Although I am not licensed in South Carolina, all states have a name change process that you can use that is fairly simple. In most cases, there are online forms.
Also, a step-parent adoption usually does not cut off inheritance rights from a biological parent, so a simple name change may be all that you need.
To eliminate any doubt, your biological father could always adopt you as an adult.
You should check South Carolina law.