About why partnerships in business are usually more efficient and successful than businesses of single entrepreneurs. By combining their strengths (money, knowledge, ideas, skills, connections, funds, patents - whatever), partners not only help to strengthen their business, but also expand its capabilities. However, all these advantages can be quickly destroyed if the rules for the interaction of partners were not spelled out "on the shore". For business, there is nothing worse than the internecine wars of the owners. They often end in the collapse of a partnership, coupled with broken promises, financial disasters, and nightmarish litigation.