A shareholders’ agreement is a contract signed by the shareholders of a company, which regulates their obligations and rights, as well as what should happen if certain situations arise.  By entering into a shareholders agreement, you agree on how you will operate the business and how you will depart the business. Can any director solely buy new equipment? What happens if one director wants to sell and not another? What happens if one shareholder becomes sick or injured and can no longer work in the business? Your shareholders agreement can answer all these questions.