As Special Counsel at the New York City Department of Housing Preservation and Development, Harold was responsible for federal policy issues and was instrumental in the creation of the Third Party Transfer Program and the revised in rem legislation, the negotiation of the 203(k) settlement with HUD, local legislation regarding lead paint in residential housing, the redevelopment of Noble Drew Ali Plaza in Brooklyn and restructuring Code Enforcement. In addition, he oversaw the agency’s computer technology and the production of the Housing and Vacancy Survey.