My future MIL seems to think her close friends and their children and spouses (with no ties to the wedding party) should be invited to the rehearsal dinner.  I say no, since they are 1.)local to the place of the wedding, 2.) Not immediate family (or family at all) and 3.)Not a part of the wedding party.
I totally don't care if they come or not EXCEPT that our venue for the rehearsal comfortably holds 60 people (and holds 70 uncomfortably).  She gave me a list of 53 people from "her side" that should be invited.  The particular family in question accounts for 7 people.  That list did not include myself or my fiance and it also didn't include "my side".  I have a list of 32 people that ideally would be invited (I can reduce it to the 25 that HAVE to be there).
53+32=85  Do we just invite 85 and see what happens?
Also, do local family members of the wedding party get invited?  One of our groomsmen's parents are on the list, but they aren't super close with my future in-laws, so I say nix them...