Direct answer
Yes, once a signed acceptance has been delivered: if the seller then walks away without a contractual basis, a buyer who intends to live in the single-family home can sue for specific performance (Civil Code §3387). Before signatures, no. California requires a signed writing to sell real property (§1624), and a price agreed by phone does not bind the seller.
Who this article is for
- Buyers who have agreed on a price above $5 million in Palo Alto, Atherton, Los Altos, or a neighboring town and are now waiting on the seller's signature
- Buyers already in escrow who are hearing from the listing agent that the seller is "having second thoughts" or "has a higher offer"
- Buyers negotiating off-market or ahead of a public listing, with no open bidding process to set the pace
- Cross-border families buying through an LLC, a family trust, or as an investment, who want to know in advance which remedies they would hold if a seller defaults
Three questions that decide where you stand
Whether a seller can still back out depends on where you sit on the timeline. The three questions below run in order. The first decides whether you have a contract at all. The second decides whether the seller has a lawful way out. The third decides how far you can go if the seller insists on leaving anyway.
One: is there a signed acceptance, delivered the way the contract requires?
Civil Code §1624(a)(3) places an agreement for the sale of real property among the contracts that must be in writing. Without a writing signed by the party to be charged, or by that party's agent, the agreement is invalid — and when an agent signs, the agent's authority must itself be in writing (Civil Code §2309). In a home purchase, the party to be charged is the seller, and a listing agent ordinarily holds no written authority to sign a purchase contract on the seller's behalf. So a price settled on a phone call, or a one-word "yes" from the listing agent by text, is not the seller's commitment to you. Electronic signatures are not the issue. Under §1633.7, where the law requires a writing or a signature, an electronic record or electronic signature satisfies it. But California's Uniform Electronic Transactions Act applies only to transactions in which the parties have agreed to deal electronically (§1633.5(b)). In practice, what counts is an electronic signature on the contract document itself, delivered the way the contract specifies. A chat thread is not a signature.
The C.A.R. California Residential Purchase Agreement (RPA) defines acceptance as the moment the recipient signs the offer, or the final counter offer, in writing and in full, and delivers it to the offering party or that party's authorized agent. Until that moment, contract law's default rules do the buyer few favors. An offer can be revoked at any time before acceptance is communicated (§1586). And if the seller changes any single term of your offer, the reply is a new proposal, not an acceptance (§1585) — your original offer is no longer on the table. The RPA itself states that the seller has no obligation to respond to an offer, and by default the offer expires at 5:00 p.m. on the third calendar day after the buyer signs, unless another deadline is written in.
The counter offer forms make the gap plainer. A Seller Counter Offer (C.A.R. Form SCO) can be withdrawn by the seller at any time before you sign it and your acceptance is delivered, and the seller stays free to accept someone else's offer instead. A Seller Multiple Counter Offer (SMCO) goes a step further: your signature is not enough. The seller must sign a second time, in the form's final acceptance section, and the fully signed copy must be delivered back to your side before a contract exists. So "before signatures" means, precisely, before the last person who has to sign has signed, and that signature has been delivered. In that window, the law gives a buyer no tool to hold the seller in place.
Two: after signing, does the seller have an exit the contract actually provides?
Once acceptance takes effect, the position reverses. The RPA's routes out for a seller are enumerated, not open-ended. If the buyer misses a deadline to remove contingencies, or fails to deposit the earnest money, provide proof of funds or loan documentation, or return signed statutory disclosures on time, the seller must first deliver a Notice to Buyer to Perform (C.A.R. Form NBP), giving the buyer at least 2 days after delivery. Only if the buyer still fails to perform can the seller cancel. The other route is a seller contingency written into the contract in advance — for example, one tied to the seller finding a replacement home — exercised in good faith. That contingency must have been in the contract at signing and not yet removed. To cancel because the other side failed to close, a party must first deliver a Demand to Close Escrow (C.A.R. Form DCE) and allow at least 3 days after delivery.
"A new listing just came up on the same street" and "someone will pay $500,000 more" appear nowhere on that list. A seller may accept back-up offers while your contract is in force, but C.A.R.'s Back-Up Offer Addendum (BUO) is explicit: before a back-up contract can move into first position, the seller must obtain a written cancellation of the prior contract signed by all of its parties — and you are one of those parties. By the same logic, a seller handing your deposit back does not, by itself, end the contract. The deposit sits in escrow, and releasing it takes written instructions from both sides. The full mechanics are in whether you can get your deposit back after making an offer and wanting out, which covers the other side of the coin: the buyer in default.
Three: if the seller walks anyway, how far you can go depends on who you are and how you hold title
Civil Code §3387 provides that a breach of an agreement to transfer real property is presumed to be one money cannot adequately remedy. For a single-family home that the party seeking performance intends to occupy, the presumption is conclusive. In every other case, it is a presumption affecting the burden of proof. In the first situation, the seller can no longer argue that paying damages is enough. In the second, the seller can put on evidence to persuade the court that the deal was only an investment for you, and that money will do.
This is where holding structure starts to matter. A buyer that signs as an LLC will struggle to show that a company "intends to occupy" a home, and a purchase made for investment, rental, or asset allocation falls into the rebuttable category as well. A buyer who signs individually, intends to live in the home, and moves title into a personal revocable living trust at closing may stand in a different position under §3387 than one who names a trust or an entity as the contract buyer from the start. The RPA's assignment clause lets the buyer, without the seller's consent, assign the contract to the buyer's own trust, or to an entity the buyer wholly owns that already exists at the time of assignment; any other assignment requires the seller's separate written consent. But after an assignment, who the "party seeking performance" is, and whether that party still "intends to occupy," is a question for a lawyer on the specific facts. For cross-border families, this is best settled before signing. Once a seller has defaulted, it is too late to restructure.
Nor does a conclusive presumption mean a guaranteed win. It settles one element only — whether money is enough. The other thresholds for specific performance remain. Under §3392, a party that has not fully and fairly performed its own conditions precedent cannot obtain specific performance, unless the failure is only partial and either immaterial or capable of full compensation, in which case the party must fully compensate for it. In practice, you will need to show that your funds or your loan were in place when the contract required. Under §3391, specific performance cannot be enforced against a seller who did not receive adequate consideration, or for whom the contract is not just and reasonable. A contract price supported by recent comparable sales is, on its own, part of your footing later.
Before signatures: why Palo Alto's pace makes sellers waver
The headline numbers first. According to MLSListings closed-sale data for Q2 2026 (compiled by MK Bay Area Pulse), Palo Alto closed 139 single-family homes in the quarter with a median of 8 days on market; 55 sold within 7 days, and the median sale price was 105.6% of the original list price. Move up to $8 million and above, and the picture flips. Of 16 sales in that band, 15 have an original list price on record, and 11 of those 15 closed below it, at a median of 95.9% of original list.
| Palo Alto single-family, by price band | Sales | Median sale price | Median days on market | Sold within 7 days | Sale / original list price (median) | Closed below original list |
|---|---|---|---|---|---|---|
| Citywide | 139 | $4.1M | 8 | 55 (39.6%) | 105.6% | 38 of 136 |
| Under $5M | 95 | $3.45M | 9 | 34 (35.8%) | 105.4% | 22 of 94 |
| $5M–$8M | 28 | ~$5.89M | 7 | 16 (57.1%) | 108.4% | 5 of 27 |
| $8M and above | 16 | ~$10.88M | 13.5 | 5 (~31%) | 95.9% | 11 of 15 |
| Of which: $10M and above | 8 | $16.8M | 43.5 | 1 (12.5%) | 90.0% | 6 of 8 |
Note: price bands are set by sale price. In the "closed below original list" column, the denominator is the number of sales with an original list price on record. The $8M+ and $10M+ samples are small and show direction only.
What to take from this: the "sold in a week, over asking" Palo Alto a seller reads about every day is mostly the pace below $8 million. Between $5 million and $8 million, the median sale took 7 days and closed at 108.4% of original list. Above $10 million, 6 of the quarter's 8 sales closed below original list, with a median of 43.5 days on market. A fresh list price on the same street is an anchor in the seller's head, not evidence of what this tier actually sells for. And the belief that a home "will be snapped up the moment it lists" is exactly what tends to grow in a $10 million seller's mind in the days before signing.
What MK Group sees in the field: three reasons that held a seller before signing
One Old Palo Alto purchase in the MK Group case library sat squarely in the window this article describes. The home was built after 2000, with more than 5,000 square feet of living space and a basement, on a lot of about 7,500 square feet. It had not yet been publicly listed, and the seller planned to list it at $11 million. Just before the offer was signed, a 1926 house on the same street came to market at more than $8 million — a house whose only realistic use was as a teardown. The seller saw the news and called specifically to ask about it.
That new listing was priced below the home in this deal. It worked as a land-value anchor: if a lot that needs a full rebuild can list above $8 million, a seller naturally looks back at a finished house and re-prices it. And at that moment, the buyer held nothing signed. Under the first question above, there was nothing in law to hold the seller in place.
What the buyer's side had was reasons. Kevin Mo (DRE# 02127623) led the negotiation, and the price was held with three facts the seller could check one by one: how the home's condition compared with recent nearby sales; the time and cost the seller would still have to put in to go to open market; and this buyer's funding and closing certainty. The home sold for $10.3 million, $700,000 — about 6.4% — below the seller's planned list price. Reviewing the deal on her YouTube channel, @MarieWang (44K+ subscribers), Marie Wang (DRE# 02110980) made a specific point: Palo Alto's citywide rhythm of a sale in about a week, at a premium, cannot be applied directly to a one-of-a-kind home above $10 million. The previous section's figure — 6 of 8 sales above $10 million closing below original list — points to the same thing.
The three reasons worked because each one answered an alternative in the seller's mind. The comparable sales answered "my house is worth more." The cost of a public listing answered "I don't need to sign — I'll just list it." Closing certainty answered "maybe another buyer would be better." One detail is easy to miss: Kevin Mo set a negotiating window of about 10 days from the outset, and Marie Wang's own summary was that a deal like this cannot be rushed — it has to be worked before it settles. Pressing on price takes time, and the longer the clock runs, the more likely the seller is to see a new listing or hear new market news in the meantime. The reasons have to be ready before the other side wavers, not assembled afterward.
Another deal in the case library shows, from the opposite direction, why certainty steadies a seller. It was an $18 million off-market purchase in Atherton. The buyer's loan of about $10 million meant two bank appraisals and a 30-to-35-day transaction, and the seller, who had no shortage of all-cash buyers, initially turned the offer down. The debrief traced that weak position to exactly the timeline and appraisal uncertainty the loan introduced — and the offer the owner ultimately chose was not the highest price on the table (the full story is in why an Atherton owner chose an offer that wasn't the highest). According to MLSListings Q2 2026 data, $5M+ single-family homes across nine Peninsula and South Bay cities closed a median 14 days from pending when paid all-cash (n=136), and a median 22 days on financed and other terms (n=119) (the breakdown is in how long it takes to close after signing). Laying out your timeline and funding path in advance is one of the few variables a buyer truly controls before signatures.
After signing: a buyer's three tools when a seller walks without cause
The short version first. When a seller breaks a signed contract without a contractual basis, a buyer's three tools lead to three outcomes: specific performance gets you the house, damages get you the price gap and your costs, and a lis pendens locks up title while the case runs. The first two are claims in a lawsuit. The third depends on one: you must file suit first, and the complaint must plead a claim to this specific property (CCP §405.4). A suit that asks only for money cannot support a lis pendens.
| Tool | Legal basis | What it can achieve | Requirements and costs |
|---|---|---|---|
| Suit for specific performance | Civil Code §3387, §3391, §3392 | A court order requiring the seller to convey at the contract price and on the contract terms | You must have performed your own conditions precedent — in practice, show you have performed or stand ready to; the seller may defend on inadequate consideration or a contract that is not just and reasonable as to the seller; an owner-occupant buyer of a single-family home gets a conclusive presumption, other buyers only a rebuttable one |
| Claim for damages | Civil Code §3306 | Amounts paid, title examination and document costs, the difference between the contract price and the home's value at the time of breach, costs of preparing to move in, provable consequential damages, and interest | You do not get the house; the price gap has to be proven through valuation evidence |
| Record a lis pendens | CCP §405.20–§405.24, §405.30–§405.32, §405.38 | Once recorded, later buyers are treated as on notice of the suit, and rights set by the judgment relate back to the recording date | Must be signed by an attorney of record (§405.21); before recording, mailed by registered or certified mail, return receipt requested, to adverse parties and owners of record (§405.22); the seller can move to expunge, and the buyer must then show probable validity by a preponderance of the evidence; the prevailing party on that motion can be awarded attorney fees |
What to take from this: the lis pendens is the most forceful tool on the list, and the easiest to misuse. Once recorded, any later buyer is treated as on notice of your suit, and rights set by the final judgment relate back to the recording date (§405.24). In practice, title insurers generally will not issue standard coverage to a new buyer over a lis pendens that has not been expunged, which makes it hard for the seller to sell the home to anyone else in the ordinary way. But the seller can move to expunge at any time, and you then carry the burden of proving the probable validity of your real property claim by a preponderance of the evidence (§405.30, §405.32). The prevailing party on that motion is to be awarded reasonable attorney fees and costs, unless the court finds the other side acted with substantial justification (§405.38). A lis pendens that cannot stand shifts the fee exposure back onto the buyer.
At the heart of damages is the gap. Say the contract price is $10 million and the home is worth $10.6 million when the seller breaches. That $600,000 difference, plus amounts paid, title examination and document costs, provable consequential damages, and interest, sets the scope of a claim under §3306 — and the house itself does not come back. How to weigh specific performance against damages, and whether to plead both in the alternative, is for your attorney to design on the facts of your case.
Before any of these tools comes one contractual step. The RPA's dispute resolution clause requires buyer and seller to mediate first, before arbitration or litigation. A party that files suit without first attempting mediation, or refuses a mediation request before filing, loses the right to recover attorney fees even if it ultimately wins — and the RPA separately entitles the prevailing party to reasonable attorney fees, a sum that carries real weight in litigation over a $10 million home. The mediation clause also leaves room for protective steps: filing suit to record a lis pendens or to seek provisional relief does not breach it, but the filing party must ask the court, at the same time or promptly after, to stay the case until mediation or arbitration is complete. The arbitration clause takes effect only if both sides initialed it; without both sets of initials, the dispute goes to court. On timing, mediation itself has to be scheduled. Once in litigation, under standard 2.2(f)(1) of the California Standards of Judicial Administration, courts aim to dispose of 75% of unlimited civil cases within 12 months of filing, 85% within 18 months, and all within 24 months. These are case-management goals, not guarantees for any single case, and dispositions include settlements and dismissals. With a timeline that long, what carries the most weight at the negotiating table is often the lis pendens and the §3387 presumption: they change both sides' costs well before any judgment.
Common mistakes
Mistake one: "We agreed on a price by phone, so the seller can't take another offer"
The seller can. Section 1624 requires a sale of real property to be signed in writing by the party to be charged or by an agent authorized in writing; a seller who has not signed, and has not authorized anyone in writing to sign, is not bound by a verbal price. A one-word "OK" in a messaging app is not a signature either: California's electronic transactions law applies only where both sides have agreed to transact electronically (§1633.5(b)). A counter offer from the seller (SCO) can be withdrawn at any time before you sign it and your acceptance is delivered, and the seller can accept someone else's offer instead; with a multiple counter offer (SMCO), after you sign you still have to wait for the seller to sign again and deliver it. What you can do before signatures is shorten the time to a written acceptance, and have ready the reasons that make the seller not want to change course.
Mistake two: "If the seller returns my deposit, the contract is canceled"
It is not. Canceling a contract needs a basis in the contract: a buyer who failed to perform after the seller delivered a Notice to Buyer to Perform, or a seller contingency written into the contract and exercised in good faith. Returning the deposit is not one of them — and because the deposit is held in escrow, escrow will not release it without written instructions from both sides. In practice, a seller at this point usually sends over a document to "cancel the contract and release the deposit." Sign it and you have agreed to cancel. Have an attorney read it first.
Mistake three: "Once it's signed, the sale is certain to close"
A signature gives you the right to demand performance, not the outcome. The seller may have a lawful exit: a contingency or obligation of yours that was not met on time, followed by an NBP, or a seller contingency written into the contract from the start. Even where the seller truly walked without cause, specific performance has hurdles. Section 3392 requires you to have performed your own conditions precedent, which in practice means showing you have performed or stand ready to; §3391 lets the seller defend on inadequate consideration or a contract that is not just and reasonable as to the seller. Procedurally, mediation comes first, and once in litigation, California's goal for unlimited civil cases is only that 75% be resolved within 12 months of filing (California Standards of Judicial Administration, standard 2.2(f)(1)). After signing, the most important thing is to stay ready to close at all times, and to keep a written record of it.
Mistake four: "Buying through an LLC or a trust gives me the same protection as an owner-occupant"
It does not. The conclusive presumption in §3387 applies only to a single-family home that the party seeking performance intends to occupy. In every other case, the presumption affects only the burden of proof, and the seller can offer evidence that money damages are enough. A buyer that signs as an LLC, or buys to invest or rent, usually falls in the second category. Whether a buyer who signs individually and places title in a revocable trust at closing still counts as intending to occupy is for an attorney to judge on the facts. Cross-border families settling on a holding structure before signing should weigh this point alongside tax and estate planning.
Mistake five: "Once the seller takes a back-up offer, they can switch to the higher bidder whenever they like"
Not whenever they like. C.A.R.'s Back-Up Offer Addendum (BUO) makes a back-up contract conditional: to move it into first position, the seller must first deliver to the back-up buyer a written cancellation of the prior contract signed by all of its parties. You are one of those parties, and without your signature the back-up waits in line. Sellers usually take back-up offers to guard against a buyer default — not because they have the right to swap buyers on their own.
Next steps
- Before signatures, shorten the window. Put a clear expiration on the offer, agree on electronic signing, name who receives delivery, and record the time once acceptance is delivered. If you receive a multiple counter offer (SMCO), remember that after you sign, you still wait for the seller to sign again in the final acceptance section and deliver it.
- Before signatures, have ready the material that takes apart a seller's reasons to waver: a condition comparison against recent comparable sales, the real results of public listings in the same price tier (in Palo Alto at $8 million and above, for example, the median sale in Q2 2026 closed at 95.9% of original list), and your proof of funds and closing timeline.
- After signing, the moment you hear the seller is wavering: do not sign any cancellation or release document. Confirm in writing that you will perform on schedule, keep your funds or loan in a ready state, and keep evidence of it. The contract gives the buyer two notices — a Notice to Seller to Perform when the seller misses an obligation on time, and a Demand to Close Escrow when the seller will not cooperate by the closing date — and both are also the contract's prerequisites for a buyer to cancel. If your goal is the house, confirm the wording with your attorney before sending either.
- Before signing, settle the holding structure: who the buyer on the contract is, whether you intend to live in the home, and whose name title will be in at closing. Confirm with your attorney which side of §3387 you fall on, then decide whether to sign as an individual, a trust, or an entity.
- If it comes to a breach: have a California real estate attorney assess it the same day. Propose mediation in writing first, as the contract requires, to preserve your right to recover attorney fees. If a lis pendens is needed, file suit first and make sure the complaint pleads a real property claim; have it signed by your attorney and mailed under §405.22, and at the same time, as the contract provides, ask the court to stay the case while mediation or arbitration runs its course.
This article is for decision education and is not legal or tax advice. Whether a contract can be specifically enforced, and whether a lis pendens will hold, depends heavily on the exact wording of your contract, the signature and delivery record, your holding structure, and the facts. If a seller backs out or breaches, confirm with a California-licensed real estate attorney as early as possible; for cross-border holding structures, also confirm with your CPA. The California statutes cited here reflect the current text as reviewed on leginfo.legislature.ca.gov in September 2026 and may be amended. C.A.R. standard forms were revised several times in 2025–2026, so paragraph numbers and details follow the version of the contract you actually signed.