For all insurance authorized by this subsection and provided pursuant to a commitment entered into after October 8, 1980 , the Secretary may not accept an offer to prepay or request refinancing of a mortgage secured by rental housing unless the Secretary takes appropriate action that will obligate the borrower (and successors in interest thereof) to utilize the property as a rental property for a period of five years from the date on which the insurance was provided (twenty years in the case of any such mortgage purchased under section 1720 1 of this title) unless the Secretary finds that—

(A) the conversion of the property to a cooperative, or condominium form of ownership is sponsored by a bona fide tenants’ organization representing a majority of the households in the project;

(B) continuance of the property as rental housing is clearly unnecessary to assure adequate rental housing opportunities for low- and moderate-income people in the community; or

(C) continuance of the property as rental housing would have an undesirable and deleterious effect on the surrounding neighborhood.