This chapter explores a five-year university-community partnership in Puerto Rico that supported the transformation of an abandoned school into a community resilience hub. Through Worcester Polytechnic Institute’s Puerto Rico Project Center and its Shared Action Learning approach, faculty and students collaborated with Id Shaliah, a grassroots organization in the rural community of Cubuy-Lomas, Canóvanas, to co-produce knowledge and action that advanced climate resilience. The chapter situates this work within broader challenges facing Puerto Rico, including widespread school closures, aging populations, and heightened community vulnerabilities to disasters. Through three vignettes, we illustrate how sustained engagement, institutional networks, and tangible contributions foster reciprocal relationships and strengthen the social infrastructure for community-defined futures. We argue that universities, when engaged in long-term, trust-based partnerships, can play a catalytic role in co-producing both physical and social infrastructure by supporting grassroots initiatives with visibility, resources, and solidarity. The chapter concludes by reflecting on the evolution of the Puerto Rico Project Center into a hub for rescued school partnerships and the development of a Community Resilience Platform to amplify local expertise and foster shared learning. This work contributes to the literature on ethical global learning, community-based research, and climate adaptation by demonstrating how long-term, trust-based collaborations can support marginalized communities to envision and enact resilient futures.