Seattle, Washington
Seattle, Washington landlord software
Manage your Seattle rentals with confidence.
RentMouse keeps leases, rent, maintenance, documents and tenant communication for your Seattle rentals in one workspace, with lease guidance linked to Washington jurisdiction records. Review the applicable sources before relying on a draft.
Start free · Washington rules and sources
Renting in Seattle
Neighbourhoods landlords here manage: Capitol Hill, Ballard, Queen Anne, University District, Fremont, West Seattle.
Every rented home registers, from a house to a tower
Seattle's Rental Registration and Inspection Ordinance covers all rental housing, single-family houses included, and registration is due as soon as there is a tenant in the space. Registering means confirming the property meets the City's housing maintenance standards, and inspections follow: a property is selected once in the first five years after registering, with roughly a one-in-ten chance of a second inspection in the five years after that. Commercial lodging, state-licensed facilities and housing owned by government or a housing authority sit outside the requirement.
Local sources
Checked 2026-09-08. Confirm the current requirements for your address with the responsible authority.
- Rental Registration & Inspection Ordinance — Seattle
- RRIO for owners and managers
- RRIO inspection checklist
Washington rules that apply in Seattle
- Security deposit limit
- No statutory limit
- Deposit return / claim rule
- 30 days
- Deposit interest
- Not required
- Notice before entry
- 2 days' written notice; 1 day to show the unit to buyers or renters
- Ending a month-to-month
- Landlord needs just cause (RCW 59.18.650); tenant gives 20 days
- Notice before a rent increase
- 90 days' written notice (30 days if rent is income-based)
- Late fees
- No late fee if rent is paid within 5 days of due date; no state cap
- Rent control
- Statewide cap: lesser of 7% + CPI or 10%; 9.683% for 2026
General information from Residential Landlord-Tenant Act (RCW ch. 59.18), last reviewed 2026-08-21; not legal advice. Municipal bylaws can add requirements. Sources are listed on the Washington guide.
What RentMouse does for Seattle landlords
- Properties & units — Each building and suite in one portfolio view, with occupancy, unit details and photos.
- Tenants & leases — Tenant records and lease terms attached to the right unit, with renewals surfaced before they arrive.
- Rent tracking — Monthly invoices, recorded payments, balances, overdue flags and reminders. Tenants keep paying you the way they already do.
- Maintenance — Requests with photos, priorities, vendors, dates and costs linked to the unit.
- Documents & e-signing — Jurisdiction-aware lease drafts from guided templates, sent for electronic signature and filed with the tenancy.
- Tenant portal — Optional, free for tenants: their tenancy details, invoices, shared documents and maintenance requests.
- Landlord website — A branded page at rentmouse.com/your-business that advertises vacant units, collects rental inquiries and doubles as the tenant sign-in.