Final answer:
Landlords can enter a unit without written notice in emergency situations or when there is reasonable belief that the property is being abandoned or misused. This includes urgent repairs, safety threats, and legal obligations. Local laws and lease agreements will dictate the specifics of entry rights.
Step-by-step explanation:
The circumstances under which a landlord can enter a unit without written notice generally involve situations where there is an emergency or when the landlord has a reasonable belief that the property is being abandoned or misused. Such emergencies can range from urgent repairs to threats to safety, and may also include situations where the property has been damaged or there is a significant risk of damage. In non-emergency situations, landlords are typically required to provide advance notice before entering a tenant's unit; however, the specific time frame and conditions under which notice must be given can vary based on local laws and the terms of the lease agreement.
For instance, if a landlord receives information that structural damage has occurred that poses a danger to tenants, immediate entry to inspect and repair the issue may be warranted. Additionally, if a landlord is informed that a tenant has abandoned a property or if there are signs of illegal activity, the landlord may be permitted to enter without notice to protect their property or to comply with legal obligations. It's important to note that even in situations where notice is not required, landlords are still generally expected to enter at reasonable times and to take steps to respect the tenant's privacy to the extent possible.