(5) The landlord has in good faith contracted to sell the property and the contract of sale contains a representation from the purchaser confirming that purchaser’s intent to use the property in consistency with paragraphs (2), (3) or (4) of this subsection;
(6) The landlord has become liable for a substantial increase in property taxes or a substantial increase in other maintenance or operating costs, and such liability occurred not less than 4 months prior to the demand for the increase in rent, and the increase in rent does not exceed the prorata portion of the net increase in taxes or cost;
(7) The landlord has completed a substantial capital improvement of the rental unit or the property of which it is a part, not less than 4 months prior to the demand for increased rent, and such increase in rent does not exceed the amount which may be claimed for federal income tax purposes as a straight-line depreciation of the improvement, prorated among the rental units benefited by the improvement;
(8) The landlord can establish, by competent evidence, that the rent now demanded of the tenant does not exceed the rent charged other tenants of similar rental units in the same complex;
(9) The landlord can establish, by competent evidence, that the domestic abuse, sexual assault and/or stalking constitutes a viable and substantial risk of serious physical injury to a tenant who currently resides in another unit of the same multi-unit building as the domestic violence, sexual assault or stalking victim; or
(10) The landlord, after being given notice that the tenant is a victim of “domestic abuse,” “sexual offenses,” or “stalking” as defined in § 5141 of this title, discontinues those actions prohibited by subsection (a) of this section, above.