; (3) with respect to an affiliate of the owner property, by procuring the performance of services or selling goods that are not ordinary, necessary, and at market rates; or (4) by lending money to any owner of the borrower or to any related person. (f) Treasury authority and duties (1) Approval deadline The Secretary shall approve or deny any preferred equity instrument submitted under this section to the Secretary within 30 calendar days of such submission. (2) Purchase and sale authority With respect to a preferred equity instrument, the purchase of which is guaranteed under this section, the Secretary may, at the Secretary’s discretion— (A) purchase the preferred equity instrument from the applicable financial institution any time after the end of 7-year period beginning on the date payments are first due with respect to the instrument; (B) sell any preferred equity instrument purchased by the Secretary under subparagraph (A)