I'm going to fight with a woman who wanted to invade my family's privacy
How was she invading privacy?
She was stalking and commenting on family pictures on my social media.
I am glad that you want to protect your family. I think that fighting her is not the way to go though. Maybe just get the authorities involved!
I just want to look at her and show her who's boss. If that makes me a criminal, so be it.
They sound like they are too interested in your personal life. Try making your social media settings private and only allow close one to view and comment on them. Ignore her and let her find another interest.