My Grandparents took in 4 foster children when I was about 4 years old. We only went to visit once a year but I was friends with the girl. I've been tossing back and forth about inviting them to the wedding. They drink alot and get very rude, and rowdy, not to mention they steal and have taken advantage of my Grandparents.

The girl has 3 kids of her own which she would also bring as well as her boyfriend, and the 3 boy they adopted all have 2 - 3 kids and wives. I would almost like to invited the girl but I don't want the guys at the wedding at all. Can I do that? Any advise in a situation like this?