((a)) ** Prepayment and termination** An owner of eligible low-income housing may prepay, and a mortgagee may accept prepayment of, a mortgage on such housing only in accordance with a plan of action approved by the Secretary under this subchapter or in accordance with . An insurance contract with respect to eligible low-income housing may be terminated pursuant to only in accordance with a plan of action approved by the Secretary under this subchapter or in accordance with .section 4114 of this titlesection 1715t of this titlesection 4114 of this title

((b)) ** Foreclosure** A mortgagee may foreclose the mortgage on, or acquire by deed in lieu of foreclosure, any eligible low-income housing project only if the mortgagee also conveys title to the project to the Secretary in connection with a claim for insurance benefits.

((c)) ** Effect of unauthorized prepayment** Any prepayment of a mortgage on eligible low-income housing or termination of the mortgage insurance on such housing not in compliance with the provisions of this subchapter shall be null and void and any low-income affordability restrictions on the housing shall continue to apply to the housing.