Dinner Party Etiquette - guests inviting more guests!
Hi, I'm having a small dinner party with family members. A month ago I sent out an email invitation to the all the family living near by, total of 12 guests. Now, 3 days before the party one of the family members has invited 6 more people to my party, 4 are family from out of town, 2 are dates. I was informed by email that these other family are in town and they have invited them and I should formally invite them so feelings are not hurt. I'm on a limited budget and wasn't planning on accommodating 18 people! This is a sit down dinner. What is the proper thing to do?