Audit of Corporation for National and Community Service Grants to the Mayor’s Fund to Advance New York City The Mayor's Fund to Advance New York City (Mayor's Fund) served as the intermediary (i.e., the prime grantee) for a Social Innovation Fund (SIF) grant from CNCS totaling approximately $28.5 million for the period from August 1, 2010 to July 31, 2015. The Mayor's Fund divided its responsibilities among itself, the Center for Economic Opportunity (CEO) and MDRC, a non-profit, nonpartisan social and education policy research firm.