The U.S. Department of Housing and Urban Development has launched a statewide crackdown in Florida on nonprofit businesses that violate the agency’s home-selling rules.

The move is intended to put a clamp on what has become a common practice in South Florida: the selling of HUD homes to investors by nonprofit groups. Statewide, HUD sold 700 homes to nonprofits last year — about 15 percent of all the HUD homes sold in the state.