The Principles for Responsible Investment in Agriculture and Food Systems (CFS-RAI) are shown as suitable instruments to contribute to the Sustainable Development Goals (SDG) in rural areas. Local Action Groups (LAGs) have proven to be effective governance structures for the implementation and management of rural development projects based on participation and collective action. This research integrates the implementation of the LAG from the CFS-RAI Principles for the design of a rural development strategy. The foundations of these new structures are analyzed and the process of creating a LAG linked to the El Mantaro Regional Development Center (RDC) of the Universidad Nacional Mayor de San Marcos (UNMSM), in the Junín region (Peru), is described. The methodological process incorporates the “Working With People” (WWP) approach and the LEADER (Liaison Entre Actions de Développement de l’Économie Rurale) specificities for the analysis of empirical information obtained in surveys and workshops, with 350 people involved in the process. The results indicate that the LAGs, as multi-stakeholder partnerships linked to the RDC, are a novel way to integrate the CFS-RAI principles from participation, proximity management, strengthening local communities and promoting sustainable development through projects. These results contribute to the empowerment of civil organizations and motivate their participation in local political decisions related to sustainable rural development.