When the head of a nonprofit that helps formerly incarcerated people applied for a grant from Manhattan District Attorney Cy Vance Jr.’s multimillion-dollar asset forfeiture fund, he met with a seemingly endless application.

Some legal experts and good-government groups say that setup allows Vance to dole out millions with minimal oversight — and with big potential for conflict.

“The DA is not an administrative agency or the legislature,” said Carol Kellerman, the retired president of the Citizens Budget Commission.