It starts small. Maybe they hired a new vendor without asking. Then they fired a key employee. Now, they are signing leases or taking out loans without even cc'ing you on the email. When a co-owner goes rogue, it creates chaos. But can they legally do that? The answer depends entirely on your business structure (LLC vs. Corp) and the specific governing documents you signed. In New Jersey, "majority rule" is common, but it is not absolute.