What is Form 17 in Washington real estate?

Form 17 is the Real Property Transfer Disclosure Statement that Washington sellers are required to deliver to buyers under RCW 64.06. It is a standardized questionnaire covering the property's title, water, sewer, structure, systems, and environmental conditions, answered from the seller's actual knowledge.

Who has to complete Form 17?

Nearly every seller of residential property in Washington, with narrow exceptions.

The requirement applies to improved residential property with one to four dwelling units, condominiums, and manufactured homes affixed to land. Vacant land uses a separate short form, and commercial property has its own version.

Exemptions are narrow and specific, covering situations like certain foreclosure and estate transfers. If you think you might be exempt, confirm it with your real estate agent or an attorney rather than assuming, because guessing wrong on a statutory disclosure is an expensive mistake.

What does Form 17 cover?

Six pages of yes, no, and don't-know questions, organized by category.

Title. Ownership, easements, encroachments, boundary agreements, and any recorded restrictions.

Water. Source, whether it is public or a well, water rights, and any known problems with quantity or quality.

Sewer and septic. Which system serves the property, its condition, and maintenance history.

Structural. Roof, foundation, walls, and any known defects, settling, or past repairs.

Systems and fixtures. Electrical, plumbing, heating, cooling, and appliances that convey.

Environmental. Flooding, drainage, soil stability, hazardous materials, underground storage tanks, and similar conditions.

The form closes with a catch-all asking whether there is anything else a buyer should know. That question does real work and should not be skipped past.

What does "actual knowledge" mean for sellers?

It means you answer honestly about what you actually know. It does not mean you must investigate.

This is the most misunderstood part of the form. A seller is not required to inspect their own home, hire experts, or discover defects they are unaware of. If you genuinely do not know whether the sewer line is clay or PVC, "don't know" is a correct and acceptable answer.

What you cannot do is answer "no" to something you know is true, or "don't know" about something you plainly do know. That is where liability lives, and it survives a buyer waiving their inspection contingency.

The practical guidance for sellers: answer from what you know, use "don't know" where you genuinely do not, and attach documentation where you have it. A seller who discloses a 2019 roof repair with the invoice attached is in a far stronger position than one who leaves the question blank.

What is the three-day rescission right?

Delivery of Form 17 starts a clock for the buyer.

The seller must deliver the completed form within a set period after mutual acceptance, generally five business days unless the parties agree otherwise in writing. Once the buyer receives it, they typically have three business days to rescind the agreement by delivering a separately signed written notice of rescission.

That right exists so a buyer who learns something material from the disclosure can exit rather than being locked in by timing. Like every other window in a Washington transaction, it expires, and letting it pass means accepting the disclosure as delivered.

Buyers should read the form the day it arrives. Three business days is not long, and it runs whether you opened the email or not.

Does Form 17 replace a home inspection?

No, and treating it as one is the most common buyer mistake with this document.

The two do completely different jobs. Form 17 tells you what the seller knows. An inspection tells you what is actually true. A seller who has never been in the crawlspace can honestly answer "don't know" about moisture down there while the moisture is very much present.

This matters more, not less, when you are waiving contingencies. If you are considering waiving your inspection contingency to compete, Form 17 becomes one of your only windows into the property's history, and it is a narrow one. A pre-inspection fills the gap the disclosure cannot, and our look at Seattle pre-inspection trends covers how buyers here handle it.

What is the difference between Form 17 and Form 17C?

Form 17 covers improved residential property. Form 17C is the shorter version used for unimproved or vacant land, and it drops the sections about structures, systems, and appliances that do not apply.

If you are buying or selling raw land, confirm with your agent which version applies. Using the wrong form is a paperwork problem that surfaces at the worst time.

What to know if you are buying

Read it carefully, and read what is missing as closely as what is filled in.

Look for patterns of "don't know." A seller who has owned the home for fifteen years and does not know about the sewer, the roof age, or past water intrusion is either genuinely uninvolved or being careful. Either way it is a signal to inspect harder.

Follow up on every "yes." Any disclosed condition deserves a specific question: when, who repaired it, is there documentation.

Check the dates and the signature. An unsigned or undated form is not a delivered disclosure.

Note your rescission deadline the day it arrives, and put it in your calendar.

Do not treat "don't know" as reassurance. It is the absence of information, not the presence of good news.

What to know if you are selling

Fill it out yourself, carefully, and resist the urge to be either evasive or over-helpful.

Answer from actual knowledge. Do not guess, and do not speculate about conditions you have not observed.

Use "don't know" honestly. It is a legitimate answer and it is safer than a wrong "no."

Attach documentation. Repair invoices, permits, and service records make a disclosed issue look managed rather than alarming.

Disclose known material defects even if they feel like dealbreakers. A buyer who discovers an undisclosed known defect after closing has a claim, and waiving an inspection contingency does not protect you from it. Disclosure is the protection.

Do not let anyone else complete it for you. Your agent can explain the questions. The answers have to be yours, because the knowledge being disclosed is yours.

Key takeaways

• Form 17 is required by RCW 64.06 on nearly every Washington residential sale.
• Sellers disclose actual knowledge only. No duty to inspect your own home.
• Delivery is generally within five business days, and the buyer typically has three business days to rescind.
• It is not an inspection. It reports knowledge, not condition.
• Honest disclosure protects sellers, and it survives a waived inspection contingency.

Frequently asked questions

Can a buyer waive receipt of Form 17?

The disclosure requirement is statutory and the rescission right can be affected by written agreement between the parties. Waiver questions here are genuinely legal questions, so ask a real estate attorney rather than relying on general guidance.

What happens if a seller lies on Form 17?

A buyer who discovers a knowingly false answer about a material defect may have a claim against the seller. This is one of the few areas where a waived inspection contingency does not protect the seller, because the issue is misrepresentation rather than property condition.

Does Form 17 apply to new construction?

Builders selling new homes are generally handled differently than resale sellers, and builder warranties come into play. Confirm the specific requirement for your transaction with your agent.

Is Form 17 the same as a resale certificate?

No. Form 17 is the seller's disclosure about the property. A resale certificate is the condo association's disclosure about the association's finances, litigation, and governing documents. A condo purchase typically involves both.

Getting the disclosure right

Form 17 is a short document that quietly carries a lot of legal weight for both sides. Sellers who fill it out carefully avoid claims. Buyers who read it carefully know where to inspect.

At Every Door Real Estate, we walk sellers through the form question by question and help buyers read between the lines of what has been disclosed. If you have questions about a specific answer, talk with our team.

This article explains how Form 17 generally works in Washington. It is not legal advice. Disclosure disputes turn on specific facts, so bring in a real estate attorney if you are facing one.