The purpose of this action research study was to investigate the perceived status of adjunct faculty and improve their sense of belonging and organizational inclusion in a community college English department. Adjunct faculty are the majority in public two-year campuses, yet they are not fully included in college activities or organizational structures. Limited inclusion is an equity issue that harms adjunct faculty members' professional well-being and hinders their contribution to student success goals. In the first cycle of research, interviews with adjunct English department faculty members identified perceptions regarding roles, supports, and challenges. First cycle data indicated a high level of marginalizing factors and limited sense of organizational belonging. This formed the foundation for Cycle 2 action steps, which developed, implemented, and evaluated an adjunct-specific professional development vehicle, the Adjunct Focused Inquiry Group (FIG). The Adjunct Focused Inquiry Group used collaborative research to develop inclusion and sense of belonging. Action step activities stemmed from the formation of this collaborative inquiry group. Together, participants conducted research, met to share findings, presented to stakeholders, and created an online platform for research document sharing. Field observations, analytic memos, interview transcripts, surveys, and participant correspondence were thoroughly analyzed to assess action steps. The study concluded that adjunct faculty members' sense of belonging and inclusion can be improved through adjunct-specific professional development that is compensated and collaborative, particularly when it demonstrates impact within the organization. Institutional implications include increased stakeholder awareness, the inclusion of feedback from an important faculty population, and the potential for the organization to adopt adjunct-specific collaborative inquiry as an ongoing professional development option. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]