A: Perhaps you're thinking you don't know her well enough to include her as a bridesmaid, but you might want to reconsider. While you're not obligated to ask her, the long-term benefits of family harmony may outweigh the potential harm and hurt feelings that not asking her would cause. She's about to become part of your family—and you part of hers. This is a great opportunity to get to know her better. It's a good bet that your future in-laws would appreciate such an inclusive gesture as well.
If she declines, or if there are too many future sisters-in-law to make it manageable for all of them to be bridesmaids, look for other ways to include them, such as asking them to do readings. —Anna Post, The Emily Post Institute