(6) Notwithstanding any other provision of law, a person who violates article fourteen of subchapter two of this chapter by failing to correct such violation in accordance with paragraph one of subdivision a of section 27-2056.11 of this code shall be subject to a civil penalty of two hundred fifty dollars per day for each violation to a maximum of ten thousand dollars from the initial date set for correction in the notice of violation until the date the violation is corrected and certified to the department, and in addition to any civil penalty shall, whenever appropriate, be punished under the provisions of article three of subchapter five of this code. There shall be a presumption that the condition constituting a violation continues after the service of the notice of violation. The owner shall be responsible for the correction of all violations noticed pursuant to article fourteen of subchapter two of this chapter, but in an action for civil penalties pursuant to this subdivision may in defense or mitigation of such owner's liability for civil penalties show:
(i) That the condition which constitutes the violation did not exist at the time the violation was placed; or
(ii) That he or she began to correct the condition which constitutes the violation promptly upon discovering it but that full correction could not be completed expeditiously because of serious technical difficulties, inability to obtain necessary materials, funds or labor, or inability to gain access to the dwelling unit wherein the violation exists, or such other portion of the building as might be necessary to make the repair, provided that a postponement was granted pursuant to this subdivision; or