I've recently gotten engaged and the future Mr. and I are planning a 2013 wedding. We both want a backyard wedding that is as small and intimate as possible (and a tight budget). We've already started to plan a guest list, unfortunately, I'm hitting a snag with my mother.
My mother insists that I invite my sister's in-laws to the wedding to "keep the peace". I don't agree with her. I'm wondering what the etiquette on this would be especially since I've already started making cuts elsewhere (family members I haven't spoken to in over a year or more, acquaintances, etc.).
I've known my sister's in-laws for years, but I only interact with them a) when I have to and b) when it is something that involves my sister. There has been a lot of family drama with them the past few years (starting when my sister and her husband got engaged). The drama causes tension in my family especially between my sister and my mother. But is this enough of a reason to invite my sister's in-laws?
Am I being unreasonable here? Please help.