LARSO: The LA City Rent Stabilization Ordinance: Tenant Defense Guide

If your unit is covered by LARSO, the landlord cannot evict you without one of fourteen statutory just causes. Cannot raise rent above the annual cap. Cannot terminate at will. Most landlords who file LA UD cases either misread LARSO coverage, miss the registration requirement, fail the relocation-assistance step, or invoke a just cause they cannot prove. Each of those is a defense that ends the case.

The LA City Rent Stabilization Ordinance (LAMC §§ 151.00 et seq., also called “RSO” or “LARSO”) was enacted in 1979 and covers most multi-unit buildings built before October 1978 in the City of LA. It is one of the strongest tenant protection regimes in the country.

We only represent tenants. We litigate LARSO defenses constantly. The most common path to a tenant win is showing the landlord failed an LARSO requirement, registration, just cause, or relocation.

Is your unit covered?

LARSO covers most rental units in the City of LA that meet all of:

• Located within City of LA boundaries (NOT County unincorporated, NOT West Hollywood, NOT Santa Monica, each has its own ordinance).
• Multi-unit (2 or more units on the property).
• Certificate of Occupancy issued on or before October 1, 1978.

Common exemptions:

• Single-family homes and condos (generally, but check AB 1482 coverage instead).
• Hotels and motels (unless occupied as primary residence 30+ days).
• Government-owned units (HACLA), hospitals, religious dormitories.
• Units built after October 1, 1978.
• Substantially rehabilitated buildings (after city approval of the SR application).

How to verify: check the unit’s registration at the LAHD portal. If LAHD has assigned an RSO/LARSO ID, the unit is covered. If not, look up the building’s Certificate of Occupancy at LADBS.

The 14 statutory just causes (LAMC § 151.09(A))

1. Failure to pay rent (after a compliant 3-Day Notice).
2. Violation of a substantial covenant of the lease (after a compliant 3-Day Notice to Perform).
3. Failure to give access required by law.
4. Nuisance (after notice with opportunity to cure where applicable).
5. Use of premises for illegal purposes.
6. Refusal to execute a written renewal extension of an expiring lease on substantially the same terms.
7. Landlord seeks to recover possession in good faith for the landlord’s own use or for use by a family member (OMI).
8. Landlord seeks to recover possession to comply with a government order requiring permanent removal.
9. Landlord seeks to convert the unit (Ellis Act withdrawal).
10. Landlord seeks to demolish the building.
11. Landlord seeks to do major repair work for which the unit must be vacated (HCID-approved).
12. Tenant has been temporarily displaced and remains.
13. Landlord seeks to recover possession to convert the building to affordable housing.
14. Owner-occupant of a 2-unit or 3-unit building seeks to recover possession for owner-residence (very narrow).

Registration requirement, and the failure-to-register defense

Every LARSO-covered unit must be registered annually with LAHD (LAMC § 151.05). Registration includes payment of the annual fee. A landlord whose registration has lapsed cannot collect rent during the lapse and cannot evict for any reason during the lapse. CC § 794.4(B) (recent amendment) and LAHD’s enforcement framework treat lapsed registration as a complete affirmative defense.

This defense alone has resolved many cases for tenants. See LARSO Failure-to-Register Defense.

No-fault relocation assistance, LAMC § 151.09(G)

For no-fault terminations (OMI, Ellis Act, demolition, government order, capital improvement, conversion), the landlord must pay relocation assistance. Amounts vary by tenant status:

• Eligible tenants (senior, disabled, minors in household, 5+ year tenancy): higher tier.
• Qualified tenants (others): lower tier.
• Amounts are updated annually by LAHD, recent ranges from approximately $9,000 to $22,500.

Failure to pay the correct relocation amount by the required deadline is a defense to the eviction. The notice must also identify the assistance offered.

Common LARSO defenses

• Failure to register — lapsed annual registration.
• No qualifying just cause stated — notice silent on which of the 14 causes is being invoked.
• Pretextual just cause — landlord cites OMI but does not actually intend to move in, or cites nuisance with no real conduct.
• Unpaid relocation — no-fault termination without the required relocation payment.
• Failed cure opportunity — many LARSO grounds require notice + opportunity to cure before termination.
• Rent overcharge — rent exceeded the LARSO cap, the excess can be offset against any rent claim.
• Retaliation — termination within 180 days of protected activity (CC § 1942.5).

LARSO vs. AB 1482

LARSO is a CITY ordinance. AB 1482 (Tenant Protection Act of 2019, CC § 1946.2) is a STATE statute that covers most rentals 15+ years old statewide, including single-family homes owned by corporations. They can overlap. Where both apply, the stricter rule wins. For LA City covered units, LARSO usually controls. For single-family homes in LA, AB 1482 may be the operative regime. See AB 1482 Just-Cause.

What to do right now

• Look up your unit at LAHD’s portal, confirm LARSO coverage.
• Check the LAHD database for the current registration status (lapsed or current).
• Read the notice carefully, does it state one of the 14 just causes by number?
• If no-fault, was relocation assistance offered and paid by the required deadline?
• Pull rent history, has the landlord ever raised rent above the annual cap?
• Document any retaliation timeline.
• Plead all applicable LARSO defenses in the Answer (Item 3j or 3u).

Related pages

• Eviction Defense overview
• AB 1482 Just-Cause
• LARSO Failure-to-Register Defense
• Owner Move-In Defects
• Pretext / Wrongful No-Fault
• Retaliatory Eviction Defense
• 3-Day Notice to Pay or Quit