FSIL predicament

Nope, do what you want and don't have her in your BP. It will end in utter chaos if you ask her to be in it. Also, don't ask too early (something I learned on WW) =)

ETA: clarity

100% say no. Why would you want someone who isn't close to you, forget someone who doesn't even like you, to stand next to you on your wedding day? No.

Nope. I wouldn't ask her. My own sister isn't one of my bridesmaids because she hates me.

I would not. She has not been supportive or involved at all. But now all of the sudden, she wants to be involved? I would rather stay out of her drama and say forget about it. It is your day, no need for any bad juju she may plan.

Don't do it.

Nope, I wouldnt ask her. I don't think you should ask your BP based on obligation. Those standing by your side should be those closest to you.

No is a complete sentence

She will likely say no anyways.

No shot. If you make her a BM we'll be seeing a post from you 5 months from now about how terrible she's making the experience for you!

Screw her. BMs are for actual friends.

You definitely do not need to ask her to be a BM and from the sounds of it, I would not

She doesn't like her own brother? That pretty screwed up. I think you are in your right to not have her in the wedding party. If FMIL is so concerned about it maybe she should talk to FSIL about her behavior instead of being accepting of it.

Including toxic people in your wedding party (especially out of obligation or pressure) is guaranteed to result in unnecessary drama and stress.

No is a complete sentence.

Are you picking all of your bridesmaids based on FMIL's expectations? Or are you picking your nearest and dearest to stand beside you?

ETA: You even answered your own question. You don't want her in the bridal party. If FMIL has a problem with it, tough. It's your bridal party not hers.

You don't have to include her. It's your bridal party. You want your friends who support you and are excited for you!

I agree with everyone else, Just Say No.

Since she's not close to your FH, I wonder if she even wants to be a BM. This may be your FMIL trying to force closeness that no one really wants.

Thank you ladies!! You are all very right. I was worried about causing future family issues but seeing as she already doesn't talk to me I'm not sure what else could happen.

I wouldn't ask her, and I especially would not be asking your BP this early at all anyway. You can use that as an excuse for now with your FMIL.

Nope why add drama to your wedding

Nope. Definatly don't feel obligated. The girls you chose to stand up there with you are people who love and support you no matter what.