Family Feud

So I just recently got engaged (😭💍) and I'm over the moon! The one thing that concerns me most about the wedding is inviting my family because both sides of my family have an equal amount of drama. On my dad's side, I have an uncle that has disowned the family, but my aunt and cousins I have by him still try to stay in contact with us although it's hard because we've recently learned that he's been abusive towards them but she won't press charges or call the cops. On my mom's side, her entire family likes to cause drama (it's an inside joke that our family can't leave a get-together without having a huge argument) plus my mom's side doesn't really practice good hygiene and can be very ill-mannered. Plus they claim that my dad's side of the family thinks they're better than them which isn't true. How do I go about this as far as wedding invites go and how can I make sure my relatives behave? And yes, my fiancé has met both sides in the past and he's well aware of what he's in for😂