U.S. property management company Greystar swindled renters across the country out of hundreds of millions using deceptive advertising and hidden fees, according to a lawsuit filed Thursday by the U.S.

The complaint filed Thursday charges that the country’s largest landlord failed to include information about numerous mandatory fees in its listings.

The antitrust and consumer protection agency accused Greystar Real Estate Partners of deceptive pricing, charging tenants millions of dollars in unadvertised fees.