Black was litigation director of the Federal Home Loan Bank Board, deputy director of the FSLIC, SVP and general counsel of the Federal Home Loan Bank of San Francisco, and senior deputy chief counsel, Office of Thrift Supervision. He was deputy director of the National Commission on Financial Institution Reform, Recovery and Enforcement.
Black developed the concept of "control fraud" frauds in which the CEO or head of state uses the entity as a "weapon." Control frauds cause greater financial losses than all other forms of property crime combined. He recently helped the World Bank develop anti-corruption initiatives and served as an expert for OFHEO in its enforcement action against Fannie Mae's former senior management.