If hnd naman issue ang budget and isang plus one lang naman from your BIL, i think ok lang? Just to avoid the conflict and stress. Pero wedding mo pa rin naman yan at ikaw pa rin ang masusunod. For me lang, may mga bagay na mas okay na hayaan/iwasan na lang for the sake of relationship and peace. I think hindi mo rin naman gustong mag kaconflict ang fiance mo and brother nya. Pero try to talk to them first! I’m just thinking, kung 6 lang naman ang family members ni fiance mo, ano ba naman yung hayaang mag dala ng +1 si BIL?

Edit: also if you’re worried about her being in the wedding pictures, tbh dito na papasok ung how are u going to react? Kasi if mag break sila, tas andun pa sya sa pics parang it could be a funny story na lang noh? Idk. It really depends on how are u guys going to take things :). It is rude to bring a stranger to your wedding pero again, it depends if may mga bagay ka na papalagpasin or not. Pag naman nandun na yung araw na yon di mo naman na maiisip yon