This research is aimed to better understand what characteristics of family firms create a context in which family governance systems are more frequently adopted. Taking into account the characteristics of family firms in terms of ownership structure, management involvement, and family and organizational complexity, we identify four different contexts that create different communication needs and are related to the use of different family governance mechanisms. We characterize the different contexts or types of family firms as: founder-centric, protective, consensual, and business-evolved. Our findings show that family protocols are associated to contexts with high family involvement in management and family complexity, while family councils are more frequent when there is a separation of managerial and ownership roles and there is a high organizational and family complexity. The study highlights the value of social systems theory in order to explain the association between the characteristics of different firm types and contexts, and the use of family councils and family protocols to govern the relationship between the owner family and the business. Family governance mechanisms are widely recommended by practitioners and scholars. However, they are usually adopted only by a small percentage of family firms. This study helps to better understand what family governance systems may be more appropriate in different contexts and relativize the necessity of these governance mechanisms in function of the communication needs created within each context.