A sublet request from a tenant isn’t automatically a problem, but it does need to be handled correctly to protect your Seattle rental property. Here’s what actually matters when a tenant asks to bring in a subletter.
Legalities
Subletting is generally allowed only if your lease permits it or you grant explicit permission. When a tenant sublets, they’re entering a separate agreement with the subletter, but their original lease with you stays fully in effect, they remain legally responsible for rent and the condition of the unit regardless of who’s actually living there.
Proper Contracts
If you approve a sublet, get it in writing, ideally as an addendum to the existing lease that names the subletter, spells out the term, and confirms your original tenant remains responsible for everything. A verbal “sure, that’s fine” leaves you with no protection if something goes wrong.
Responsibility
Your original tenant is still on the hook for rent, damage, and lease compliance even if a subletter is the one actually living there. If rent doesn’t get paid or the unit gets damaged, you pursue your original tenant, not the subletter you likely never screened yourself.
Advertising and Screening
Even though your original tenant is finding the subletter, you’re within your rights to require the same screening standards you’d apply to any new tenant, background check, income verification, references. Skipping this because “it’s just a sublet” is how landlords end up with someone in their property they never would have approved directly.
What If Your Lease Already Prohibits Subletting
Most standard Washington leases include a no-subletting clause by default. If your tenant sublets anyway without permission, that’s a lease violation you can act on, typically starting with a written notice to cure or vacate, following the same formal process required for any other lease violation. Acting on it quickly matters, since letting an unauthorized subletter stay for months can complicate your position if you later need to address it.
Short-Term Sublets and Vacation Rentals
If a tenant is asking to sublet on a short-term platform rather than to a long-term subletter, that’s a different situation entirely. Seattle regulates short-term rentals separately, including licensing requirements, and most standard leases don’t authorize this use at all. Treat an Airbnb-style request as a separate conversation from a standard sublet, not a variation of the same thing.
Sublease vs. Lease Assignment: They’re Not the Same Thing
A sublease means your original tenant is still on the hook and still legally your tenant, they’re just letting someone else live there and collecting rent from them, or not, to cover their own obligation to you. A lease assignment is different: your original tenant exits the lease entirely and the new person steps into their place as the tenant of record, with a direct relationship to you. Most tenants asking to sublet actually mean they want to move out permanently and hand the unit off to someone else, which is an assignment, not a sublease, and it changes who you can hold responsible if rent stops coming in or the unit gets damaged.
Because of that difference, it’s worth screening a subtenant, or definitely a proposed assignee, the same way you’d screen any new tenant: credit check, rental history, and verified income. Your original tenant vouching for someone isn’t the same as actually verifying they can pay rent and won’t cause problems. If the screening turns up something you’re not comfortable with, you’re generally within your rights to deny the specific person proposed, even if you’d otherwise be open to a sublease in principle.
If managing sublet requests and tenant turnover has you thinking about an exit instead, I buy rental properties in Seattle and King County with tenants or subletters already in place, and handle those relationships myself after closing. Call (206) 900-8173 or send us a message to talk through your options.