What disclosures are required in Cosmopolis leases?

Federal law requires lead paint disclosure for pre-1978 housing. Washington adds requirements for mold, flooding, pest history, and other hazards.

What happens if a Cosmopolis landlord omits a required disclosure?

Missing disclosures can void lease terms, block rent increases, or trigger penalties up to $1,216+ per violation.

Must Cosmopolis landlords disclose lead paint?

Yes. Federal law requires lead paint disclosure and an EPA pamphlet for all rental housing built before 1978. Penalties reach $19,507 per violation.

Cosmopolis, WA Required Landlord Disclosures 2026

One missing disclosure in Cosmopolis can void a rent increase or cost $1,216+ in penalties. Lead paint, mold, bed bugs — each state has its own list.

Washington landlords must provide multiple mandatory disclosures before or at lease signing, including lead paint (pre-1978 housing), mold, natural hazards, and bed bug history. Missing the federal lead paint disclosure alone carries penalties of $19,507+ per violation.

Key Takeaways — Cosmopolis Required Landlord Disclosures

Key rule: Missing = Void Lease Terms
Violation risk: have lease terms voided

Required Landlord Disclosures in Cosmopolis

Cosmopolis landlords must follow Washington state law on required landlord disclosures. Understanding the specific rules, deadlines, and penalties can prevent costly violations.

$1,216

median 2BR rent

Missing = Void Lease Terms

key requirement

Penalty Warning

Violate Washington required landlord disclosures rules in Cosmopolis and you could have lease terms voided. At Cosmopolis's median rent of $1,216/month, even a single violation adds up fast.

Don’t risk it. Let LeaseBase handle the compliance.

LeaseBase automatically tracks which disclosures are needed, generates compliant forms, and confirms delivery — so you never miss a deadline.

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More Cosmopolis Landlord Laws

Security Deposit Laws → Eviction Process & Notice Requirements → Rent Increase Laws → Landlord Entry & Access Rules → Maintenance & Habitability Standards → Late Fee Limits → Lease Termination & Renewal → Fair Housing Protections → Tenant Screening Rules → Rent Control → Property Registration Requirements →

Required Landlord Disclosures in Nearby Cities

Own properties in multiple cities? Rules may differ locally:

Aberdeen, WA
Pop. 17,014 Hoquiam, WA
Pop. 8,789 Montesano, WA
Pop. 4,179 Westport, WA
Pop. 2,286 Ocean Shores, WA
Pop. 7,549

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How we researched this page: Required landlord disclosures rules are based on Washington state statutes. Rent data comes from HUD Fair Market Rents (FY2026) for Grays Harbor County. Last updated: August 2026.

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Reviewed by Rachid Abadli

Founder & CEO, LeaseBase · Sacramento landlord · Self-managing since 2019

LeaseBase is a property management platform — not a law firm. Consult an attorney for legal advice specific to your situation.