managing agent a video tour of the dwelling unit or other acceptable substitute for exhibiting the dwelling unit for sale or lease.
4. The landlord may enter the dwelling unit without consent of the tenant in case of emergency. The landlord shall not abuse the right of access or use it to harass the tenant. Except in case of emergency or if it is impractical to do so, the landlord shall give the tenant notice of his intent to enter and may enter only at reasonable times. Unless impractical to do so, the landlord shall give the tenant at least 72 hours' notice of routine maintenance to be performed that has not been requested by the tenant. Such routine maintenance shall be performed within 14 days of delivery of the notice to the tenant, and the notice shall state the last date on which the maintenance may possibly be performed. If the tenant makes a request for maintenance, the landlord is not required to provide notice to the tenant. Notwithstanding the foregoing, during a state of emergency declared by the Governor pursuant to § 44-146.17 in response to a communicable disease of public health threat as defined in § 44-146.16, the tenant may provide written notice to the landlord requesting that one or more nonemergency property conditions in the dwelling unit not be addressed in the normal course of business of the landlord due to such communicable disease of public health threat. In such case, the tenant shall be deemed to have waived any and all claims and rights under this chapter against the landlord for failure to address such nonemergency property conditions. At any time thereafter, the tenant may consent in writing to the landlord addressing such nonemergency property conditions in the normal course of business of the landlord. In the case of a tenant who has