State Attorney General Andrew Cuomo’s campaign fund took tens of thousands of dollars from law firms representing clients that his office was investigating, records show.

For example, Boies Schiller & Flexner, which gave Cuomo $35,000 this year, represents ex-AIG CEO Maurice “Hank” Greenberg in a civil fraud case the attorney general is pursuing.

Cuomo spokesman Richard Bamberger responded in an e-mail: “Lawyers appear constantly before all sorts of government agencies, whether it is the Mayor’s Office, the Governor’s Office or countless . . . boards. Indeed, the American Bar Association and New York state rules specifically encourage lawyers to participate in the political process.”