Wow, I am very happy for ya.
I guess you are seeing how this abuse rolls down the family tree. Imagine the power you have to stop this abuse.
I would say your sister is at high risk to become an abuser as well. Might not be a bad idea to let some family secrets out to someone on the BOE that knows your family in the congo if possible. It won't change the way you are treated but with all the lawsuits they might keep an extra eye on any children she might be raising.
Knowing what I know about abuse and the way she took to it and was treated I would not be able but to suspect she will act out at some point her self.
-CF