The Delta Democrat Times reports that South Delta Regional Housing Authority Director Ann Jefferson entered the plea Tuesday through her attorney.
Court documents show her trial is scheduled for April 4 in U.S. District Court in Oxford.
An indictment alleges Jefferson retaliated against two employees and a woman who bought a house from the organization after she found out the individuals had been cooperating with federal investigators who were looking into alleged crimes committed by Jefferson and others. The court records did not say what the alleged crimes were.
The South Delta Regional Housing Authority operates in Bolivar, Humphreys, Sunflower, Issaquena, Sharkey and Washington counties.