Here's the thing, our vendor contract explicitly states that changes to our package are to be made no later than 8 weeks out.
As it stands right now (we hopefully have the invite list where it needs to be), there's a good possibility that our accepted RSVPs might fall under the package's guest minimum. Our invite count is right around the middle of what our package accommodates for; we hopefully just finished our final revision. While we hope the vast majority will accept the invite, we do have a suspicion that there will be certain people who are essentially "invited out of politeness". They have to be singles with plus one allotments, too, so it really wouldn't take many of the main invitees to decline.
It would really suck to find out too late that we could've gone with a smaller package especially knowing that there is already a small number of people who likely come for the ceremony but not stick around for food (namely elderly family).
I suggestions to make the RSVP date 4-6 weeks out. Would a max of 9 weeks be too much to ask?