c. The owner shall certify correction of the violation in accordance with subdivision f of section 27-2115 no later than five days after the date set for corrections. Such certification shall be supported by a sworn statement by the owner that the units which are the subject of notice of violation have been rented to bona fide tenants or that the owner has, in good faith, made a continuing public offer to rent such units at rents no greater than the rents authorized by law. The department may require such additional proof as it deems necessary, including but not limited to the specific units offered for rent and the rents asked therefor.
d. For the purposes of this section there shall be a rebuttable presumption that an owner has violated the provisions of subdivision a of section 27-2151 if a single room occupancy dwelling unit is not occupied by a bona fide tenant for a period of thirty days or longer.
e. 1. An owner who violates the provisions of subdivision a of section 27-2151 shall be subject to a civil penalty of five hundred dollars for each single room occupancy dwelling unit cited in the notice and order issued pursuant to subdivision a of this section. In addition, an owner who fails to comply with the order within the time specified in the order or within such further period of time authorized by the department pursuant to subdivision b of this section shall be subject to a civil penalty of two hundred fifty dollars per day for each dwelling unit to be calculated from a date ten days after service of the order to the date of compliance therewith.