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CA · Tier 1 — primary-source verified

California residential lease decoder

Plain-English per-clause-type enforceability for California residential leases. Each rule below pins to the California state-legislature citation when verified, or to a "pending verification" placeholder when it isn't — never a guess.

6 of 12 clause types primary-source verified. Verify directly at the California legislature

Analyzer · residential lease

Decode a clause

Paste a clause excerpt — your text never leaves the browser. Or pick a clause type to read its 50-state enforceability grid.

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Clause by clause

Clause-by-clause rules

12 most-litigated residential lease clauses. Verified rules lead; the rest are honestly labeled pending verification, each linked to the state legislature.

  1. late-fee-caps

    Late-fee schedule

    State-restricted

    Late fees in residential leases must be a reasonable estimate of the landlord's actual damages from late payment; fees that are punitive or unrelated to actual harm are unenforceable.

    Source · Cal. Civ. Code §1671 · primary source · last verified 2026-05-08

  2. security-deposit

    Security-deposit caps and return timelines

    State-restricted

    Security deposits are capped at one month's rent for unfurnished or furnished residential units (effective July 1, 2024 under AB 12). Landlords must return the deposit within 21 days of move-out with itemized deductions.

    Source · Cal. Civ. Code §1950.5; AB 12 (2023) · primary source · last verified 2026-05-08

  3. attorney-fee-shifting

    Attorney-fee-shifting clause

    State-restricted

    If a contract gives one party (the landlord) the right to recover attorney fees, the other party (the tenant) automatically gets the same right by statute. One-way fee clauses are made bilateral by operation of law.

    Source · Cal. Civ. Code §1717 · primary source · last verified 2026-05-08

  4. repair-obligation

    Repair-obligation shifting

    Void / non-waivable

    Lease terms purporting to make tenants responsible for habitability-level repairs (plumbing, structural, weatherproofing, heat) are unenforceable. The landlord's duty is non-waivable.

    Source · Cal. Civ. Code §§1941, 1941.1 · primary source · last verified 2026-05-08

  5. habitability-waiver

    Habitability waiver

    Void / non-waivable

    The implied warranty of habitability cannot be waived in a residential lease. Tenants retain habitability rights regardless of lease language.

    Source · Cal. Civ. Code §1942.1; Green v. Superior Court, 10 Cal.3d 616 (1974) · primary source · last verified 2026-05-08

  6. late-rent-eviction

    Pay-or-quit / eviction notice timing

    State-restricted

    After rent is unpaid, a landlord must serve a written 3-day notice to pay or quit (excluding weekends and judicial holidays for purposes of the cure period under recent amendments) before filing an unlawful-detainer action.

    Source · Cal. Code Civ. Proc. §1161 · primary source · last verified 2026-05-08

6 clause types pending verification for California

  • Pet fees, pet rent, pet deposits

    Pending verification

    General doctrine across states: State security-deposit-cap statutes plus federal FHA accommodations (42 U.S.C. §3604) for assistance animals.

  • Automatic renewal of the lease

    Pending verification

    General doctrine across states: State-statute auto-renewal restrictions; consumer-protection auto-renewal disclosure requirements (where they apply to leases).

  • Mandatory arbitration / jury-trial waiver

    Pending verification

    General doctrine across states: Federal Arbitration Act (9 U.S.C. §1-16); state-specific lease arbitration disclosure rules; unconscionability defense.

  • Non-disclosure / non-disparagement

    Pending verification

    General doctrine across states: Consumer Review Fairness Act (15 U.S.C. §45b); state anti-SLAPP and anti-gag statutes.

  • Sublease and assignment

    Pending verification

    General doctrine across states: Reasonable-consent default rule (jurisdiction-dependent); restraint-on-alienation doctrine.

  • Holdover-tenant rent multiplier

    Pending verification

    General doctrine across states: Holdover tenancy doctrine; liquidated-damages reasonableness; state-specific holdover-rent statutes.

Not legal advice. LeaseRedFlag is informational only. We are not a law firm; we don't represent you. State landlord-tenant law evolves annually — verify any rule directly with the California legislature link above before relying on it. For lease disputes that matter, talk to a licensed real-property or tenant-rights attorney in California.