This design-based research study explored the feedback process, resulting actions, and changing instructional perspectives involving teachers, community members, and researchers leading to enhanced professional development offered to K-12 teachers of multilingual students. Specifically, the feedback from a community advisory council and teachers significantly shaped researchers' approaches to designing and adapting a literacy course to address the needs of multilingual students' caregivers. The findings underscore the importance of a holistic approach to professional development and highlight the multicultural perspectives that academics can discover by involving both community stakeholders and teachers in promoting impactful practices for multilingual learners.