No room for sister's partner at our 20 person wedding

[tentatives]

we have a small wedding venue. It's a private house with accommodation for 20 people.

We are having 20 guests.

The problem we/re having is partners. Some poeple are married, others engaged, others dating for 7 months, some living, and some we haven't met.

While some partners we want there others we are inviting out of politeness.

When we sent out save the dates the criteria was either married, together 5 years, engaged, or living together. All the invites were all named so the 20 know theyre invited.

When we found the venue before we got engaged our guest list was 20.

4 months later we got engaged and booked it and DP sister had been dating a man casually for 4 months. We sent out save the dates he wasn't included.

But now it's 1 year later and we're sending out invites. But theres no room for an extra guest.

DP sister is very upset. What do we do?

Op has posted before. I’m pretty sure she admitted to him not being her sort of person. She also had a weird set of rules by who made the cut which excluded him early on. She was quizzing all guests on their relationships before deciding if they were worthy.
im not sure she’ll be back in the thread as she disappeared last time when the result didn’t go her way. She’s been selective with what she’s saying this time but pretty sure it’s the same poster.

There are quite a few venues like this around us, in a rural area. It is places that were former Manor Houses, large Farmhouses, or a Rectory, so they might have 8-10 bedrooms and a large kitchen and a few downstairs living rooms, and be licenced for weddings. They are quite popular for small weddings.

Rather than risk your relationship with the owners of the venue, you'll risk it with your sister-in-law. Even worse, your husband-to-be will risk his relationship with his sister? Shame on you both. Whatever you do, you need to sort this out so that her partner is there on the day.

Otherwise, if SIL goes on to marry her partner, you can certainly look forward to not being invited to their wedding. Why would they?

what does your sister expect you to do? She knew the situation when you booked the venue she can’t surely expect you to uninvite someone who has already been invited. Is she going to pay for you to change venue? I doubt it. It’s one day of her life away from him, it’s not his family, she can lump it or decide to stay at home with him.

How do you think they can magically sort it out? There is no room for him.

Well unfortunately it looks like there is no way to have him there. Your sil should understand your hands are tied and it isn't a reflection on their relationship.