How to Stop an Eviction After Receiving an Unlawful Detainer Summons in California
If you have received an Unlawful Detainer Summons in California your first instinct may be to panic. The Unlawful Detainer Summons is an official court document informing you that your landlord has filed an eviction lawsuit against you in the Superior Court and that you are required to respond within a strict deadline or risk losing your home by default. However, receiving an Unlawful Detainer Summons does not mean that the eviction is inevitable. California law provides tenants with meaningful options to stop, delay, or defeat an eviction depending on the specific facts and circumstances of their case. Understanding every option available to you — and acting on those options immediately — is the most important thing you can do after receiving an Unlawful Detainer Summons.
Option 1 — File a Responsive Pleading Before Your Deadline Expires
The single most critical step you can take to stop the eviction process from running on autopilot against you is to file a written responsive pleading with the Court before your deadline expires. If you do not file a responsive pleading within your deadline the landlord may file a Request for Entry of Default Judgment against you. A Default Judgment for Unlawful Detainer will be entered against you based solely on your failure to respond — not on the merits of the landlord's case — and will authorize the Sheriff's Department to post a 5-Day Notice to Vacate at your residence. CCP § 1169
Filing a responsive pleading does several critically important things. It prevents the landlord from obtaining a default judgment against you. It forces the landlord to set the case for trial. It gives you the opportunity to raise every defense available to you. And it extends the timeline of the proceedings by weeks — providing you with additional time to seek professional guidance, negotiate with your landlord, or explore other options.
Your deadline for filing a responsive pleading is 10 court days from the date service of the Unlawful Detainer Summons was effected on you if you were personally served, or 10 court days plus 10 calendar days if service was effected by substituted service or by posting and mailing. AB 2347
Do not wait. Call our office immediately at (657) 510-6534 to confirm your specific filing deadline.
Option 2 — Challenge Improper Service With a Motion to Quash
California law requires that the Unlawful Detainer Summons be served on the tenant in strict compliance with the California Code of Civil Procedure. If the process server failed to effect service in accordance with the statutory requirements — for example, by leaving the documents with a minor, by posting without first making the required attempts at personal service, or by serving the documents at an incorrect address — the service may be legally invalid and the tenant may file a Motion to Quash as their initial responsive pleading challenging the validity of service. CCP § 418.10
If the Motion to Quash is sustained by the Court service of the Unlawful Detainer Summons is voided and the landlord is required to properly re-serve the Unlawful Detainer Summons on the tenant. This effectively resets the tenant's filing deadline and extends the timeline of the proceedings by approximately one additional month. Prior to filing a Motion to Quash the tenant must contact the courthouse to reserve a hearing date. A hearing on a Motion to Quash is held between 3 and 7 days after the Motion is filed. CCP § 1167.4
Option 3 — Challenge a Defective Three Day Notice With a Motion for Demurrer
A landlord's Unlawful Detainer Complaint must be predicated on a legally valid Three Day Notice. California courts require strict compliance with the notice requirements of CCP § 1161 and CCP § 1162. Common defects that may render a Three Day Notice legally invalid include demanding an incorrect amount of rent, including impermissible charges such as late fees or utilities in the amount demanded, failing to include the name, telephone number, and address of the person to whom rent must be paid, failing to provide adequate payment options, or failing to serve the notice in strict compliance with the California Code of Civil Procedure.
If the Three Day Notice attached to the Unlawful Detainer Complaint as an exhibit is legally defective the tenant may file a Motion for Demurrer challenging the legal sufficiency of the Unlawful Detainer Complaint on the grounds that it is predicated on a defective notice. If the Motion for Demurrer is sustained the Court will order the landlord to amend the Unlawful Detainer Complaint and re-serve the tenant with the amended Complaint — further extending the timeline of the proceedings. A hearing on a Motion for Demurrer is held within 7 days of the date the Motion is filed. CCP § 1170
Option 4 — Raise Affirmative Defenses in Your Answer
If you file an Answer to the Unlawful Detainer Complaint as your responsive pleading you have the opportunity to raise every affirmative defense available to you based on the facts and circumstances of your case. An affirmative defense is a legal claim that — even if the landlord's allegations are true — entitles you to remain in possession of your residence because the landlord has not complied with applicable law. The following are among the most powerful affirmative defenses available to California tenants in unlawful detainer proceedings:
Breach of the Implied Warranty of Habitability — A landlord's obligation to maintain a rental property in a habitable condition is a foundational principle of California landlord-tenant law. If your landlord failed to maintain the property in a habitable condition and you withheld rent as a result you may raise the landlord's breach of the Implied Warranty of Habitability as an affirmative defense. In an unlawful detainer proceeding based on nonpayment of rent where the tenant raises this defense the Court is required to determine the reasonable rental value of the premises in their untenantable condition and may deny the landlord possession conditioned upon payment of that reduced rental value. CC § 1941, CCP § 1174.2
Retaliatory Eviction — California law expressly prohibits a landlord from filing an eviction lawsuit in retaliation for a tenant exercising a legally protected right. If your landlord filed the Unlawful Detainer Complaint within 180 days of you having complained to the landlord about habitability conditions, reported habitability violations to a government agency, organized or participated in a tenant's rights organization, or otherwise lawfully exercised your rights under California law there is a rebuttable presumption that the eviction is retaliatory. A landlord who attempts to evict a tenant in retaliation for the exercise of protected rights is liable to the tenant for actual damages and punitive damages. CC § 1942.5
Violation of the California Tenant Protection Act of 2019 (AB 1482) — If you have continuously and lawfully occupied your rental unit for 12 months or longer and your rental unit is not exempt from AB 1482 your landlord was required to have a valid just cause for terminating your tenancy before filing the eviction lawsuit. A landlord who files an Unlawful Detainer Complaint without having a valid just cause as required by CC § 1946.2 is in material violation of AB 1482 and may be liable to the tenant for actual damages, punitive damages of not less than $100 per day, and attorney fees.
Landlord's Acceptance of Rent After Serving the Three Day Notice — If your landlord accepted rent from you after serving the Three Day Notice upon which the Unlawful Detainer Complaint is based the landlord may have waived their right to terminate the tenancy based on that notice. The landlord's acceptance of rent after serving a Three Day Notice to Pay Rent or Quit may constitute a complete waiver of the right to proceed with the eviction based on that particular notice.
Discriminatory Eviction — California and federal law prohibit a landlord from filing an eviction lawsuit based on the tenant's race, color, national origin, religion, sex, familial status, disability, sexual orientation, source of income, or any other protected characteristic. If you believe the eviction was motivated by discrimination you may raise discriminatory eviction as an affirmative defense. Gov. Code § 12955, 42 U.S.C. § 3604
Option 5 — Negotiate a Settlement or Stipulation With Your Landlord
Many unlawful detainer cases in California are resolved through negotiation rather than trial. After filing your responsive pleading you — or a representative on your behalf — may approach the landlord or their attorney to negotiate a resolution to the dispute. A negotiated resolution may take the form of a payment plan for outstanding rent, an agreement to cure the alleged lease violation, or a Stipulation for Entry of Judgment that allows the tenant additional time to vacate in exchange for the landlord dismissing or staying the eviction proceedings.
Negotiating with your landlord does not waive any of your legal rights and does not prevent you from continuing to contest the eviction at trial if negotiations are unsuccessful. However it is critically important that any agreement reached with your landlord be reduced to writing before you take any action in reliance on the agreement.
Option 6 — Explore Emergency Rental Assistance Programs
If the eviction is based on nonpayment of rent it may be possible to stop the eviction entirely by securing emergency rental assistance to pay the outstanding balance owed. Several programs exist in California and throughout Southern California that provide emergency rental assistance to qualifying tenants. Securing rental assistance and tendering full payment of the outstanding rent to the landlord before the deadline on the Three Day Notice to Pay Rent or Quit has expired — or before the landlord files a Request for Entry of Default Judgment — may extinguish the landlord's basis for the eviction entirely.
Tenants seeking emergency rental assistance in Southern California may contact 211 by dialing 2-1-1 from any phone for information about emergency rental assistance programs available in their county.
Do Not Wait — Call Tenant Eviction Defense Now
Every option described in this article requires immediate action. The deadline for filing your responsive pleading is short. Every day that passes without action reduces the options available to you and brings you closer to a default judgment for eviction being entered against you.
Tenant Eviction Defense is an IRS 501(c)(3) nonprofit organization headquartered in Newport Beach, California dedicated to providing education, information, and guidance to Southern California tenants facing eviction. If you have received an Unlawful Detainer Summons or a Notice of Unlawful Detainer in the mail from the Court call our Eviction Defense Rapid Response Line immediately at (657) 510-6534, Monday through Friday from 8:30 a.m. to 6:00 p.m. Our staff is available to discuss your situation and help you understand every option available to you.
Updated April 12, 2026.