What is the correct answer to: In Washington, a purchase and sale agreement becomes binding when:

The correct answer is Mutual acceptance occurs (all parties sign and agree). Under Washington law and standard NWMLS (Northwest Multiple Listing Service) contract practice, mutual acceptance occurs when all parties have signed the agreement AND the signing party has communicated that acceptance back to the other party, making it the definitive moment the contract becomes binding. RCW 64.04 and Washington contract law both require offer and acceptance to be complete and communicated before a real estate contract is enforceable. Until every party has signed and all terms are agreed upon, either party may withdraw without legal consequence.

What background knowledge is needed for this Contracts question?

The concept of mutual acceptance in real estate contracts is rooted in classical common law contract doctrine requiring offer, acceptance, and consideration to form a binding agreement. Washington codified real estate contract requirements under RCW Title 64, and the NWMLS standardized the mutual acceptance process in its widely used purchase and sale agreement forms. Over time, Washington courts have consistently held that communication of acceptance is essential — a seller who signs but does not communicate acceptance has not yet created a binding contract. This rule evolved to protect both parties in an era when real estate transactions became increasingly complex and multi-step.

What is a good way to remember the answer to this Contracts question?

Think of mutual acceptance as a high-five: the contract is only complete when BOTH hands meet in the middle — one hand clapping (one signature) is just an offer, not a deal. You can also use the acronym 'MASS' — Mutual Acceptance = All Signatures + Sent (communicated) — to remember that both signatures AND communication are required. Visualize two people shaking hands across a table; until both hands grip, the handshake isn't done. Visualize a handshake when considering contract formation - both parties must complete the action for the agreement to be binding.

What exam tip applies to this Contracts question?

On the exam, any answer that involves only one party acting — such as the buyer signing or the buyer depositing earnest money — is almost certainly wrong for questions about when a contract becomes binding, because contracts require two parties. Always look for the answer that describes a completed two-party agreement with communication, which is mutual acceptance.

How does this Contracts concept apply in real world practice?

Imagine a buyer submits a written offer on a Seattle home on Monday afternoon. The seller reviews the offer Tuesday morning, makes a counteroffer by changing the closing date, and signs the document. The buyer then reviews the counteroffer, agrees to the new closing date, initials the change, and signs — and the agent communicates this back to the seller's agent Tuesday afternoon. That Tuesday afternoon moment of communicated acceptance is mutual acceptance, and the purchase and sale agreement is now a binding contract. If the seller had signed but never communicated the counteroffer back, no binding contract would yet exist.

ContractsGeneralEASY

In Washington, a purchase and sale agreement becomes binding when:

Correct Answer

B) Mutual acceptance occurs (all parties sign and agree)

The agreement becomes binding at mutual acceptance, when all parties have signed and agreed to all terms.

Answer Options

Buyer signs

Mutual acceptance occurs (all parties sign and agree)

Earnest money is deposited

Inspection is complete

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Appraisal Contingency

An appraisal contingency allows the buyer to cancel or renegotiate the contract if the property's appraised value comes in lower than the agreed-upon purchase price. This contingency protects buyers from overpaying.

Assignment of Contract

An assignment of contract transfers one party's rights and obligations under a contract to a third party called the assignee. The original party, known as the assignor, transfers their contractual position to someone who was not originally part of the agreement.

Bilateral vs Unilateral Contract

A bilateral contract is an agreement in which both parties exchange promises and are both obligated to perform, while a unilateral contract is one in which only one party makes a promise and the other party is not obligated to act.

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In Washington, a purchase and sale agreement becomes binding when:

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