Just over a year into his term, former Mayor Ed Gainey launched an aggressive legal campaign with the goal of forcing large nonprofit organizations to contribute more money to help pay for vital city services. The Gainey administration alleged that valuable properties owned by the nonprofits - predominantly UPMC, Highmark Health, the University of Pittsburgh, Carnegie Mellon University and Duquesne University, the so-called Big Five - did not meet the charitable mission of the organizations.