Partnerships are not easy, whether they are marital or business relationships. Having been a business consultant for many years, I have witnessed many a partnership break up. The reasons for this are numerous, but here are some classic examples:
I could write the entire article on this subject but will keep it simple. Just because you are kin does not make you equal. Families also bring existing relationships into the company. Show me a family where parents set poor boundaries with children, and I will show you a family where siblings are not great employees. Show me two brothers that enable one another, and I will show you a business in which each partner does not pull his or her fair share.