Being served with an unlawful detainer lawsuit does not necessarily mean an eviction is a foregone conclusion. California law recognizes a number of categories of defenses that a tenant may be able to raise, depending on the specific facts of the case. This article provides a general overview — whether any of these apply to a particular situation depends heavily on the details.
Defects in the Notice
Because notices must generally meet specific legal requirements — including timing, method of delivery, and content — a notice that does not comply with those requirements may not support an eviction. Common issues can include an incorrect rent amount stated in a nonpayment notice, an improper method of service, or a notice period that was too short for the circumstances.
Improper Service of the Lawsuit Itself
Separate from the underlying notice, the unlawful detainer summons and complaint must themselves be properly served on the tenant. If service did not comply with the applicable rules, that can potentially be raised as a defense.
Habitability Issues
California landlords have an ongoing obligation to maintain rental properties in habitable condition. In some circumstances, unresolved and significant habitability problems can become relevant to an eviction case, particularly one based on nonpayment of rent. See our overview of habitability obligations for more general background.
Retaliation or Discrimination
California law generally prohibits landlords from evicting a tenant in retaliation for exercising a legal right — such as requesting repairs or reporting a habitability issue — or on the basis of a legally protected characteristic. Whether a particular eviction reflects retaliation or discrimination depends on the specific facts and timeline involved.
Waiver or Acceptance of Rent
In some circumstances, a landlord's actions after serving a notice — such as accepting rent for a period after the notice was served — can potentially affect the validity of a pending notice or action, depending on the facts.
Rent Control and Just-Cause Requirements
Where a property is subject to a state or local rent-control or just-cause eviction ordinance, additional substantive requirements may apply before a tenancy can be lawfully ended. See our article on California rent control and eviction rules.
Why Evaluating Defenses Early Matters
Because unlawful detainer cases move on a short timeline, tenants generally benefit from evaluating potential defenses as soon as possible after being served, rather than waiting until closer to a response deadline. Our office offers a free initial consultation to help tenants understand their options.