Is It Legal to Marry Your Sister in Alabama?

Alabama Marriage Requirements

You cannot marry children, siblings, parents, uncles, aunts, grandchildren, grandparents or great grandparents of any relation. You can marry first cousins without restriction, however.

Is it legal to have a relationship with your sister in Alabama?

There is no legal marriage between siblings in Alabama. A new law, however, would seem to imply that “siblings” are valid for all family members who are the biological children or whose blood comes from them.

Can a brother and sister have a kid?

But there is definitely good biology behind the laws that prohibit brothers and sisters from having children. The risk for passing down a genetic disease is much higher for siblings than first cousins.