You moved in and found the thing the seller never mentioned

Three findings decide it, and the defect is only one of them

Almost every post-closing defect claim turns on the same three findings. The seller knew. The condition was not something a reasonable inspection would have turned up. And the seller either wrote the opposite on a disclosure form or took a positive step to keep you from finding it. Lose any one of the three and the claim is usually not worth filing, however large the repair is — the size of the bill is not an element of anything.

"Material" does the quiet work there, and it is not a measure of cost. It asks whether the fact would have moved a reasonable buyer’s decision or the price. A cracked slab is material. A window that sticks is not, however irritating on the first morning, and a claim built from an accumulation of small annoyances tends to lose all of them at once.

An as-is clause is a defence to disappointment, not to concealment

The clause does real work and buyers underrate it. Texas states the rule most cleanly: under Prudential Ins. Co. of America v. Jefferson Associates, 896 S.W.2d 156 (Tex. 1995), a buyer who takes property as is agrees to make their own appraisal of the bargain and to accept the risk of being wrong, which negates the causation element of fraud, negligence and Deceptive Trade Practices Act claims as a matter of law. Texas courts quote the exception as often as the rule: the clause does not bind a buyer whose agreement was "the product of a fraudulent representation or concealment of information by the seller". It also matters whether the clause was an important part of the bargain between parties of comparable sophistication, rather than boilerplate nobody negotiated.

Elsewhere the clause never reaches the duty at all. Florida’s appellate courts still recite the duty in the 1985 words of Johnson v. Davis, 480 So. 2d 625 (Fla. 1985): where a seller knows of facts materially affecting the value of the property which are not readily observable and are not known to the buyer, the seller must disclose them. California legislated the point — Civil Code § 1102.1(a) records the Legislature’s intent that delivery of the transfer disclosure statement "may not be waived in an ‘as is’ sale".

The form, and the sellers who never have to fill one in

The statutory questionnaire — California’s transfer disclosure statement, Texas’s seller’s disclosure notice, New York’s property condition disclosure statement — is the single most useful document in a post-closing dispute, because it converts a vague duty into a dated written answer. It also has an exemption list, and the exemptions describe with some precision the sales in which a buyer is most likely to inherit a problem.

• Court-ordered sales, including probate sales in the administration of an estate, and any foreclosure sale — California Civil Code § 1102.2(b) and (c).
• Transfers by a fiduciary administering a trust, guardianship, conservatorship or decedent’s estate — § 1102.2(d). The executor never lived there and is not required to guess.
• Transfers between co-owners, to a spouse or lineal relative, and on divorce — subdivisions (e) to (g).
• In Texas, new and unoccupied residences, and property where the dwelling is worth under five per cent of the total, are outside the notice requirement altogether — Property Code § 5.008(e).

What an exemption removes is the form, not the fraud. An executor who has no personal knowledge of the house owes you very little; an executor who lived there for a decade and answers nothing is in a different position. And the form is not a warranty in either direction. California Civil Code § 1102.13 provides that no transfer is invalidated by a failure to comply, while making anyone who wilfully or negligently fails to perform a duty under the article liable for the buyer’s actual damages — compensation, not unwinding. Texas gives a buyer who receives the notice late the right to terminate within seven days of receiving it — a real remedy before closing and worth nothing afterwards. Both regimes have tightened recently: New York deleted the $500 credit a seller could once pay in lieu of the form and added seven flood questions, effective 20 March 2024, and Florida now requires a separate flood disclosure at or before contract execution under § 689.302.

What "the seller knew" has to mean

Actual knowledge, almost everywhere, and that is the wall most complaints hit. New York Real Property Law § 465 confines a seller’s liability to "a willful failure to perform the requirements of this article", and then to the buyer’s actual damages. California Civil Code § 1102.4 protects a seller against any error, inaccuracy or omission that was not within their personal knowledge. A seller who genuinely did not know is not liable for having been unobservant, and "they must have known" is an assertion, not evidence.

Which is why the winning case is nearly always a concealment case rather than a silence case. Fresh paint over a water stain, a rug over a cracked slab, a cabinet built across a rotten floor: hiding it proves the knowledge and supplies the deceit in one move. The evidence for that is almost always outside your own house.

The other people standing in the picture

The seller is rarely the only defendant and often the worst one, because a seller who has spent the proceeds is not a source of money. California Civil Code § 2079 puts an independent duty on the agents in a sale of one to four residential units: a "reasonably competent and diligent visual inspection of the property offered for sale" and disclosure of all facts materially affecting value or desirability. That duty is the agent’s own and does not turn on what the seller told them.

The inspector is a harder target than people assume, and easier than the contract implies. Almost every pre-inspection agreement caps liability at the fee, and in most states that cap is enforced. California is the exception worth knowing: Business and Professions Code § 7198 makes contractual provisions purporting to waive the § 7196 duty of care, or to limit the inspector’s liability to the cost of the report, "contrary to public policy and invalid". Section 7196 sets the standard at the care a reasonably prudent home inspector would exercise, which is visual and non-invasive: no inspector is liable for missing what could only be found by opening a wall. A home warranty is worth reading in the same hour, and usually disappoints for the same reason — the conditions that pre-date the cover are the ones it excludes.

The clock is shorter than the injury

The single most common way a good claim dies is arithmetic. The periods are short, several of them start at closing rather than at discovery, and they are not the same length for each defendant — so a buyer who spends eighteen months negotiating with the seller can find the agent already out of reach.

Texas is shorter still on the consumer route: a Deceptive Trade Practices Act claim runs two years from the act or from the date the consumer discovered or reasonably should have discovered it, extended by 180 days only where the defendant’s conduct was calculated to induce delay. Before filing, § 17.505 requires 60 days’ written notice of the complaint and the amount claimed; skip it and the defendant can abate the suit. That notice is the cheapest settlement opportunity in the sequence.

Rescission is not the remedy you are going to get

Buyers arrive wanting the sale undone, and it is the rarest outcome on this page. Rescission is conditioned on speed and on restoration: California Civil Code § 1691 requires notice "promptly upon discovering the facts" and restoration of everything of value received. A buyer who has lived in the house for a year, mortgaged it and rebuilt the kitchen cannot restore it, and has behaved as an owner throughout. The disclosure statute says the quiet part outright at § 1102.13: no transfer is invalidated by a failure to comply.

So the remedy is money, and the measure is narrower than the repair estimate people bring to it. California Civil Code § 3343 fixes damages for fraud in the purchase of property as out-of-pocket loss — the difference between the value of what you gave and what you got — plus amounts reasonably spent in reliance, and § 3343(b)(1) refuses the benefit-of-the-bargain measure outright. Texas is the outlier in the buyer’s favour: Business and Commerce Code § 27.01 adds exemplary damages where the maker had actual awareness of the falsity, and awards attorney’s fees, expert fees and costs.

When the answer is that you own it

It is worth saying without hedging, because most writing on this subject will not. A very large share of post-closing discoveries are nobody’s fault and nobody’s liability. Houses have a service life and components inside them reach the end of it on their own schedule; a twenty-year-old roof failing in year twenty-one is not a concealed defect. A seller who never went into the crawl space did not conceal what was in it. An inspector who did not open a sealed wall met the standard, because visual and non-invasive is the standard. Where the seller was exempt from the form, said nothing, and knew nothing, there is simply no defendant.

The distinction that decides which side of that line you are on is not how badly the repair hurts. It is whether there is a document, a photograph or a record showing that somebody knew and said otherwise. If that exists, gather it and send a notice of intent to sue inside the shortest applicable period rather than the longest. If, after honestly working through the permit file, the old listing and the closing paperwork, it does not exist — pay for the repair, and spend the money you would otherwise have spent on a lawyer on the next inspection.