This document discusses common mistakes parents make that can negatively impact their children's marriages and offers advice on how to have a healthier relationship. Specifically, it notes that parents can favor one child over another, be too intrusive in their children's lives, try to parent their married children, keep emotional distance, or encourage dependency. It then provides tips for both parents and adult children, such as choosing to change unhelpful relationship patterns, having honest conversations, reflecting on one's own actions, being direct but choosing battles wisely, and prioritizing the spousal relationship.