Is there a way to verify the adoption of an adult by your parents, if you can't take their word for it and don't want to ask to see the legal paperwork. My father has passed away, my mother is not mentally well, a high school friend of my sister was supposedly legally adopted by my parents 20 years ago when she was 18 years old. About the same time all family members (including her) moved far away from the original home in different directions and have never been close since. I never had a relationship with the adopted woman. I have googled this and can't seem to get an answer. Thank you.