Fast forward to now 6 months later...we are asking for the addresses once again for our invitations. It took multiple attempts to get them, but when we did my FILs want 25+ people added to our guest list. Some of them are extended family, some are people we don't even know.
When my fiancé told his parents that we were not adding those people his mom said since she was giving us some money (very small amount compared to overall cost of our wedding) they WILL be invited. They have told us that we have to invite these people and we should rent a tent to help accommodate.
We are extremely frustrated by this because our contracts thus far reflect 175 guests. I firmly stand by my decision to not invite any more people. I feel that I would be more inclined to invite these people if we would have known about them in October and received their addresses.
What do we do?