sentences:  Units are either owned or rented by low-income people, and residents may enter into a rent-to-own agreement.At the end of the 40-year period, the townhomes may be sold by their owners (whether residents or the cooperative) at market rates.Determined to improve its public housing stock, in 2000 DCHA applied for an won a $30.8 million grant (known as HOPE VI) from the United States Department of Housing and Urban Development.