Washington lease contains prohibited terms or undisclosed fees? RCW 59.18.230 has teeth.
Chapter 59.18 RCW lists specific lease provisions a landlord cannot enforce against a tenant and specific fees a landlord cannot charge without prior written disclosure. The remedies for inclusion of a prohibited provision or collection of an undisclosed fee are real: RCW 59.18.230 lets a tenant recover actual damages plus statutory damages up to two months' rent plus reasonable attorney's fees when the landlord knew the provision was unenforceable when the lease was signed or knowingly attempted to enforce it. The remedy structure is what makes the illegal-lease-provision letter work even when the actual dollar amount paid is small.
The categories of prohibited provisions
RCW 59.18.230 bars lease provisions that purport to waive the tenant's rights under the chapter, that limit the landlord's liability for negligence, that authorize the landlord to confess judgment, that limit the tenant's right to assert valid statutory or common-law remedies, or that allow the landlord to take possession without going through the lawful unlawful-detainer process. Provisions that purport to make the tenant pay all of the landlord's attorney's fees regardless of who prevails are also commonly challenged. The statute treats these provisions as void and gives the tenant the remedies above when the landlord either knew the provision was unenforceable at the time of signing or knowingly attempted to enforce it after a tenant objection.
Undisclosed fees and nonrefundable fees
Washington draws a sharp line between refundable security deposits and nonrefundable fees. Under RCW 59.18.285, a fee is not nonrefundable unless the lease specifically and clearly designates it as nonrefundable in writing. A landlord who labels something a "cleaning fee" but does not designate it as nonrefundable cannot keep it as a nonrefundable charge; the amount is treated as part of the refundable deposit and is subject to the 30-day return rule under RCW 59.18.280.
Move-in fees, pet fees, "administrative" fees, and similar undisclosed or vaguely worded charges are common targets. The tenant's defense is straightforward: either the fee was specifically designated as nonrefundable in writing in the lease, or it was not. If it was not, the landlord must return it (or apply it to the deposit accounting under the 30-day rule and deal with it as part of the deposit). The lease language is the entire dispute on these.
Late fees, attorney-fee shifting clauses, and joint-and-several
Late fees in Washington residential leases are subject to reasonableness. Excessive late fees, or late fees that escalate punitively, are vulnerable. Clauses that purport to require the tenant to pay all of the landlord's attorney's fees in any dispute (regardless of who prevails) are problematic and have been treated as void in tenant-protective rulings; the lease cannot strip the tenant's reciprocal attorney-fee right under Chapter 59.18. Joint-and-several clauses against co-tenants are generally enforceable but can be limited by RCW 59.18.230's prohibition on waiver of statutory rights.
Why this letter works at scale
Landlords using template leases that contain unenforceable provisions are exposed across their entire portfolio. A demand letter that identifies the unenforceable provision, documents that the landlord knew (because the lease was drafted by counsel or by a professional management company that should know) or that the landlord knowingly attempted to enforce, and demands the statutory remedy under RCW 59.18.230 (actual damages plus up to two months' rent plus reasonable fees) typically gets the landlord's attention. The exposure on a single matter is meaningful; the exposure across the portfolio (if other tenants notice) is significant.
What the demand letter should do
- Identifies the specific lease provision or fee at issue, quoting the exact language.
- Identifies the statutory ground that makes the provision unenforceable or the fee unrecoverable: RCW 59.18.230, 59.18.285, or other applicable section.
- Documents that the landlord either knew the provision was unenforceable at signing (sophisticated landlord, drafted by counsel, professional management) or knowingly attempted to enforce after objection.
- Calculates the actual damages (amount actually paid by the tenant under the unenforceable provision) and references the statutory damages up to two months' rent under RCW 59.18.230.
- Demands refund of amounts paid plus a settlement number that accounts for the statutory exposure.
- Preserves the reasonable attorney's-fee remedy under RCW 59.18.230 on a successful claim.
- Sets a 14-day response window.
Documents to upload before the letter goes out
- The full lease, including all addenda and any updated versions.
- The specific page and paragraph containing the prohibited provision or undisclosed fee.
- Proof of any payment made under the unenforceable provision (receipts, cancelled checks, bank statements).
- Any written objection the tenant sent and the landlord's response.
- Any document indicating the lease was drafted by counsel or a professional management company.
- A short timeline: lease signing date, payments made under the disputed provision, current status.
Sergei's practical note
Two parts of the file decide whether this letter works. The first is the "landlord knew" element. A professional management company, a corporate landlord with counsel, or a landlord with a portfolio of units is presumed sophisticated; a small landlord using a free template downloaded from the internet is harder to label as having known. The second is whether the tenant actually paid the fee. Statutory damages up to two months' rent under RCW 59.18.230 are available, but the "actual damages" piece (what the tenant paid) is the anchor for the statutory enhancement. A tenant who refused to pay the disputed fee has a thinner damages story than one who paid and is now seeking refund. The $125 written email evaluation is where I read the lease, identify which provisions or fees are vulnerable, and tell the tenant which fact pattern they actually have.
When this is the wrong tool
If the disputed provision was never enforced and the tenant has paid nothing under it, the actual-damages anchor is missing and the letter is weaker. If the landlord is a small owner using a template they did not draft, the "knew or knowingly attempted" element is harder. If the issue is really about a deposit that should have been returned, the deposit framing under RCW 59.18.260 and 59.18.280 is usually cleaner than the prohibited-provision framing.
What I review when you send the file
I read the lease, identify each unenforceable provision and undisclosed fee, walk the "knew or knowingly attempted" element against the landlord's profile, and calculate the actual damages and statutory enhancement under RCW 59.18.230. The $125 written email evaluation tells you which provisions are the strongest leverage points, whether the file supports the statutory damages claim cleanly, and whether a $575 demand letter is the right move or whether the issue should be folded into a broader deposit or repair claim.
Primary sources
- RCW 59.18.230: prohibited lease provisions; remedies including actual damages, statutory damages up to two months' rent, and reasonable attorney's fees.
- RCW 59.18.285: nonrefundable fees must be designated in writing.
- RCW 59.18.080: tenant remedies for breach of duty; reasonable-fee considerations.
This page is an educational resource. Sergei Tokmakov is a California attorney (CA Bar #279869) currently seeking admission to the Washington State Bar. Nothing on this page creates an attorney-client relationship, and nothing on this page is Washington legal advice for a specific matter.