(D) Provided, however, that subsection (a)(1) shall not apply with respect to rent payments that initially became due during the time period when paragraph 2 of the Governor’s Executive Order No. N-28-20 was in effect (March 16, 2020 through September 30, 2020), and where the tenant’s failure to pay (i) arose out of a substantial decrease in household income (including, but not limited to, a substantial decrease in household income caused by layoffs or a reduction in the number of compensable hours of work, or substantial out-of-pocket expenses); (ii) that was caused by the COVID-19 pandemic, or by any local, state, or federal government response to COVID-19; and (iii) is documented. The types of documentation that a tenant may use to show an inability to pay due to COVID-19 may include, without limitation, bank statements, pay stubs, employment termination notices, proof of unemployment insurance claim filings, sworn affidavits, and completed forms prepared by the Rent Board. A tenant shall have the option, but shall not be required, to use third-party documentation such as a letter from an employer to show an inability to pay. The provisions of this subsection (a)(1)(D), being necessary for the welfare of the City and County of San Francisco and its residents, shall be liberally construed to effectuate its purpose, which is to protect tenants from being evicted for missing rent payments due to the COVID-19 pandemic. Nothing in this subsection (a)(1)(D) shall relieve a tenant of the obligation to pay rent, nor restrict a landlord’s ability to recover rent due;