So my FH and his dad have a VERY tumultuous relationship. So much so, that they have not spoken really for the past two years. Planning a wedding made my FH realize that he'd like to have his father in his life again and he reached out to him and they have started to speak and work everything out over the past couple months. In case it matters, the reason for the tension between the two are because of actions of his father, not my FH's.
The problem is, we can't afford to invite his fathers family. His mother is italian and has 70 immediate family members, and she has remarried and her husbands family adds a good amount of additional people as well. We have already decided not to invite a lot of our friends due to our budget. We have already booked our venue, so that cost is decided. We will be able to trim from other areas like flowers, DJ, photography, ect to make room in the budget to invite his father and his step-mother.
I was wondering if there is any proper way to ask his father to chip in so we could cover the cost to invite the rest of his family. My father, and my FH's mother are helping us to pay for the wedding. FMIL has some SERIOUS issues with her former husband and is insisting that we ask him to chip in, because she isn't willing to help pay for anything to do with him. I just don't know how to go about this. I know he can afford to help pay, but it is an extremely uncomfortable conversation. We aren't trying to be "gift grabby" we just planned our budget out assuming we'd have 130 guests, and now have an additional 30 guests to account for. Is there absolutely ANY way to follow proper etiquette for this conversation? I feel like having the conversation at all goes against proper etiquette but my FMIL is being very insistent.
Thank you ladies!