Founded by seasoned PR specialists Samantha DeRose and Robin Graber, the agency delivers strategic storytelling backed by measurable results Liminal Public Relations & Communications , a women-founded agency dedicated to delivering strategic, results-driven communications, recently announced its official launch. The firm was co-founded by Samantha DeRose, who serves as president, and Robin Graber, who serves as vice president.   Based in Phoenix, Liminal represents clients ac