No loans shall be made by the Housing Development Fund except to eligible owners of residential dwellings who meet reasonable criteria of credit worthiness as defined by the Housing Development Fund and in accordance with a written loan agreement which shall include, but not be limited to, the following terms and conditions:
(1) No loan shall be made under the provisions of this article, unless an affidavit shall be executed by the eligible owner asserting his title to the residential dwelling and submitted to the Housing Development Fund together with evidence of his source of title;