This dissertation examines the dynamics of research-practice partnerships (RPPs) through a qualitative multiple-case study that explores the boundary work between university researchers and K-12 practitioners. It is framed within Wenger’s communities of practice theory and focuses on the concept of ‘boundary work,’ which is pivotal in understanding the collaboration and knowledge exchange in these partnerships. The study is titled “A Tale of Two Brokers” reflecting the critical role of individuals who bridge the divide between academic and practical spheres. It argues that the concept of boundary work is critical in understanding and improving the functioning of RPPs, suggesting that more attention should be paid to the role of brokers in facilitating these partnerships. Key findings reveal that effective boundary work in RPPs is contingent on mutual respect, shared goals, and a deep understanding of each community’s values and practices. The study highlights that while researchers and practitioners often have different priorities and approaches, successful brokers can harmonize these differences to create a productive partnership. These brokers often possess qualities such as flexibility, strong communication skills, and a deep understanding of academic and practical contexts. In conclusion, this study contributes to the broader understanding of how university researchers and K-12 practitioners can effectively collaborate. It underscores the importance of recognizing and nurturing the role of brokers in RPPs, providing valuable lessons for future collaborations between academic researchers and practitioners in various fields.