By Richard Harroch, Lynne Hermle, and Ellen Ehrenpreis When launching a new startup, you can face significant business and legal challenges. We have seen plenty of mistakes made by entrepreneurs and startup companies. The following are some of the more common and problematic legal mistakes made by small and growing companies. These mistakes are made at the initial formation of the business, in the early stages of growth, and when dealing with employees. Mistake #1: Not Making the Deal Clear With Co-Founders If you start your company with co-founders, you should agree early on about the details of your business