Poster Mirto McDonald is a full-service Architecture and Planning firm specializing in four primary work areas: Historic Preservation, Community Architecture, Workforce Housing, and Urban Planning. These four disciplines are interrelated and reflect our core values of community, urbanism, place-based environmental design, and innovation. For more than thirty years, the work of Poster Mirto McDonald has been rooted in the communities we serve. We pride ourselves on the creative quality of our ideas and our commitment to the cultural and historic context of Arizona.