As an economic regulator, the Régie des marchés agricoles et alimentaires du Québec (RMAAQ) settles contractual disputes between producer organizations and buyers that arise from the applicable regulatory and conventional frameworks. In recent years, there have been several indications that a phenomenon of judicialization of conflict resolution has developed, with repercussions on the efficiency of the RMAAQ process and the overall performance of the system. What is the situation? What factors contribute to this phenomenon, if it really exists? In an exploratory logic, we answer these questions by documenting the components of the process and their evolution over the last fifteen years, through the analysis of 17 interviews conducted with the boards, accredited buyers and lawyers active in this regulated field. What we have learned is that the judicialization of disputes is not so much quantitative, but rather qualitative. The results show an increased judicialization of disputes due to the complexity of the economic stakes, to the dynamics and relationships between intermediaries before the RMAAQ and to the weakness of alternative methods. In addition, a cycle of judicial review of RMAAQ decisions in the decade 2000-2010 seems to have been a determining factor. Since then, a legal culture has really become institutionalized in the conflict resolution process and the RMAAQ is trying to take charge of it. This article contributes to describe a phenomenon with potentially harmful consequences for the operating costs of collective marketing and to explore an important institution of the Quebec agri-food sector that has not yet been analyzed.