Rentals often make up the largest share of a city’s problem properties. Deterioration of these properties disproportionately affects low-income renters and already vulnerable residents. Rental regulation programs—including rental registration, inspection, and licensing programs—help improve the quality of life for tenants and neighbors, and help cities prevent vacancy by ensuring that properties remain habitable. In this session, we will share case studies of Rochester, New York and Racine, Wisconsin—two cities implementing innovative rental regulation programs. Representatives from these cities will share their lessons learned, including how to navigate the political and administrative hurdles of implementing a rental regulation program, strategies to mitigate potential adverse impacts on tenants, and how to use data to prioritize inspections and identify non-compliant owners.