Lots of couples are starting businesses these days. If you are one of these couples, three mistakes are common. We know, because we’ve made them. Prof. Dan Horne, Associate Dean of Corporate Initiatives at Providence College sets us straight with good advice and a lifetime of insight. He grew up in a family that ran a business. He’s also a gifted researcher, analyst, and adviser. He lived the family entrepreneur dynamic firsthand—and has continued studying real-world CoupleCos during his career. He also has some highly salient advice for any CoupleCo anywhere. Professor Horne shares with us three important tips for any couple co that wants to avoid big trouble and possible ruin.