Hey I found this nice article from youngentrepreneur.com and thought of sharing it with you
In business, there is an old saying that partnerships are easy to get into, but difficult to get out of. While not every partnership is doomed to failure, this old saying reflects how important it is to plan partnerships in the correct way. It is easy to be enthusiastic about a partnership in the beginning, when both partners are driven by the prospect of success. But if the partnership agreement does not specify who does (and gets) what as the business evolves, the partnership is likely to cause problems that nobody signed up for.