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.
You can't adopt an older sibling. You could sponsor them. Adoption is for minor children to be cared for by an adult.
Sibling
How do you adopt your spouse's children if they do not have legal status in the United States? How do you adopt your spouse's children if they do not have legal status in the United States?
The younger sibling was invented to worship and make things for the older sibling. The average younger sibling will make food and be very respectful in general to the older sibling. Younger siblings should never be rude or disrespecful to the older sibling, or say no to doing anything that the older sibling has asked of them.
No, you can only adopt someone to be your child. Your parents would have to adopt the person if you want them to become your sibling.
Usually when the older sibling is 10, 11, or 12, depending on the parent and how the older sibling and the younger sibling are like.
Your spouse's sibling's son.
Well either you had a child with your sibling or with your spouse's sibling.
If you want to look at her that way there is nothing stopping you, but generally she would not be thought to be related to you. "In-Law" relationships are usually limited to the spouse of your child, the parent of your spouse, the sibling of your spouse and the spouse of your sibling.
It's the exact same thing, it can be an older sibling or a younger sibling. it doesn't matter.
no.
edith's older sibling was a girl