Will his family attend our wedding?

Sweetie, I did not even read your whole question!!! To heck with everyone else, you just get married and don't even worry about who shows up or not. IT'S NOT ABOUT THEM!!! It's ya'll wedding day, not theirs. I see it as their loss if they don't show up. God Bless you and your significant other and have a wonderful wedding w/ my blessings.