Financing assistance for housing developments in concentrated rehabilitation areas may include any or all of the following types of loans:
(a) Development loans to prepare for rehabilitation.
(b) Mortgage loans for purchase of housing developments.
(c) Construction loans for rehabilitation, or for rehabilitation with acquisition or refinancing.
(d) Mortgage loans for rehabilitation, or for rehabilitation with acquisition or refinancing, where the cost of acquisition and rehabilitation or the cost of rehabilitation without refinancing exceeds the financial capability of the owner, or would result in rents which are not competitive for the area, as determined by the agency. For owner-occupied housing developments, the terms and interest rates of such mortgage loans shall be commensurate with ability to pay, as established by regulations of the agency.