Do I have to invite my sister

That is a bit difficult since her daughter is in the wedding.. ultimately your decision, go with your gut

I think in any situation where drug addiction/alcoholism is involved you can throw etiquette out the window and do what's best/and safest for you and your guests. I wouldn't invite her. I'd still have your niece as your fg. Chances are her life is hard enough with a mom who is an addict (even if she doesn't have custody and I really hope that she doesn't)This is probably something she's looking forward to.

You don't have to invite anyone. You're paying for your wedding, so you and FH get the only say in the guest list. But agree with PP that she may pull her daughter out if she's not invited.

We must have the same sister. An we just don't know it. Honestly it is up yo you. It is your day an use your gut feeling because people like that will make any day about them... if they are not center of attention of that day they will make sure it will or try to happend! My sister is on my maybe list because she is doing okay now... But I still have 9 months untill my special day. Good luck to you ! An never feel bad! It's your day an it's about you!

My FH is not inviting his sister. His mother had some issues in the beginning but she gets it. His other sister sent him a nasty text a couple of weeks ago when they figured it out. He told her it was none of her business and unless she was footing the bill, she had no say. It's his wedding. He gets to invite or not invite whoever he wants.

I wouldn't be inviting her. Not risking any scenes, also wouldn't be happy with the stigma of having a drug addict there though.

If you could imagine the day going smoothly & you having a better time without her there, don't feel obligated babe!

Nope - if she is able to get help and change her life around in the future she will understand your decision

Nope!

That's very sad but if you really do not want to then it's completely your call.

I stopped reading at do not speak. You don't speak! Why invite her!

I think it's totally understandable to not invite her. This is a one-time, expensive event and it's fair to leave out people with a good chance of ruining it. Sorry you're dealing with this!

I posted about a similar situation with my sister and received amazing support that I do not have to invite her.

You don't have to invite anyone you don't want there. I'm not inviting 90% of my family because I don't like them or the choices they make.

My sister got the boot and isn't invited either so it isn't wrong at all

Depends if you ever want a relationship with her again. I would feel that if you didn't invite a relative, especially when you're inviting the rest , that that's kinda unforgivable especially when you have her daughter in it. If you are okay with not having the relationship, which from the situation it seems like you don't really have one with her anyways, then it's completely reasonable not to invite her. At the end of the day, it's your happiness. Whatever will make you happy on your wedding day.

Nope

Your decision but I wouldn't. Why take the risk