Okla. Admin. Code § 330:10-13-4
(a) Mortgagor.
(1) Mortgagor must execute a sworn affidavit establishing the following:
(B) The residence is either:
(b) Lender.
(1) Lender must independently verify the accuracy of the facts contained in the mortgagor's affidavit, including performing or obtaining the following:
(2) Lender must complete a certification or an affidavit stating the following:
(c) Issuer.
(2) The mortgage purchase agreement between the issuer and lender must contain:
(D) An issue of bonds is treated as meeting the mortgage eligibility requirements of the Tax Act only if: