Can you adopt your sibling?
Your best approach is to involve a lawyer to make sure that you follow all the steps properly to do this.
Can a sibling adopt an other sibling even if they are a felon?
What you can do be nice for your sister is mabe buy her a cake or buy her a present of what she really likes.
Can you adopt someone you are not related to to be your sibling?
Aaliyah Mother name is Diane Haughton. Aaliyah's mother was a vocalist
Can your older sibling and their spouse adopt you?
Answer Depending on the circumstances, yes, it is possible. Check with an adoption attorney or a social worker about your situation and the laws in your state.