CMDC works to make DC a city where mediation is used to build strong & peaceful communities, & every DC resident has access to high-quality conflict resolution. CMDC provides mediation services at no cost and works to ensure every DC resident has access to high-quality, collaborative conflict resolution services. Community Mediation DC works to make Washington, DC a city where mediation is used to build strong and peaceful communities, and where every DC resident has access to high quality, collaborative conflict resolution tools.