(c) A tenant of a housing accommodation who, after receipt of not less than 5 days written notice that the housing provider desires an inspection of the tenant’s rental unit for the purpose of determining whether the housing accommodation is in substantial compliance with the housing regulations, refuses without good cause to admit an employee of the Department of Buildings for the purpose of inspecting the tenant’s rental unit, or who refuses without good cause to admit the housing provider or the housing provider’s employee or contractor for the purpose of abating any violation of the housing regulations cited by the Department of Buildings, will be considered to have waived the right to challenge the validity of the proposed adjustment for reasons that the rental unit occupied by the tenant is not in substantial compliance with the housing regulations.