Anonymised, illustrative composite. The waiver went out in writing two days before the inspection report itself did — and once it was delivered, the report's contents stopped being able to change anything.
At a glance
A buyer's offer on a $541,000 London-area resale bungalow carried a five-business-day home-inspection condition, negotiated into the offer by the buyer's own agent. The inspection was booked promptly, but the report itself was not due back until day four of the five-day window.
On day three, the buyer's agent learned the seller had received a second, higher offer contingent on the buyer's own inspection condition lapsing or being waived. Wanting to firm the deal up before the competing offer could act, the buyer signed and delivered a written waiver of the inspection condition — a day before the report itself actually arrived.
That sequencing decided everything that followed. A condition resolves exactly two ways: fulfilment, or waiver, and both have to be communicated in writing and delivered before the deadline. Once the last condition is waived, the agreement becomes firm and binding, whether or not the underlying protection was ever actually confirmed — a buyer who waives a financing condition is bound even if financing later falls through, and the same mechanic applies to any other condition, inspection included. The report's own contents, once it finally arrived, had nothing left to attach to.
The report, delivered the next day, flagged a deficiency in the foundation's waterproofing consistent with a history of basement seepage — exactly the kind of finding an inspection condition exists to catch before a buyer is contractually committed. It arrived one day too late to matter, not because the inspection process failed, but because the buyer had already given up the ability to act on whatever it said.
The one narrow path that survived the waiver was not contractual at all. Ontario’s general disclosure principle applies regardless of property type: a seller cannot conceal or misrepresent a known, latent defect — a problem that is not visible or reasonably discoverable through the buyer's own inspection, and that the seller actually knew about. Basement seepage sits closer to a patent defect than a hidden one in many cases, since visible staining or efflorescence is often discoverable on a walk-through; whether this particular seller knew of an active, undisclosed water problem — as opposed to the buyer simply having waived away the chance to find out through the inspection itself — was the entire remaining question, and one the buyer's own waiver made much harder to answer favourably.
Purchase price $541,000. Inspection condition: 5 business days. Waiver delivered on day 3, one day before the report on day 4. The report's flagged deficiency, left unaddressed, spans a wide range depending on severity — from a modest exterior grading and drainage fix at one end to structural foundation waterproofing at the other — and no single Canadian figure applies across that range, so none is asserted here.
The waiver-before-deadline mechanic, not the report's findings, is what decided the file: once delivered in writing, a waiver ends the condition's protection regardless of what information later arrives about the exact thing it was protecting against.
The buyer closed on the property with the deficiency unaddressed and no contractual recourse through the (already-waived) inspection condition. Whether any claim existed against the seller turned on facts the buyer could not establish — there was no clear evidence the seller knew of an active water problem rather than a past, resolved one, and an inaccurate or evasive answer is treated far more seriously than an honest gap in what a seller knows, which this seller had not given. For how the same read-it-before-you-waive mistake plays out on a rural file, see a septic system that was never permitted and an oil tank discovered during financing, where a condition still open at the time an issue surfaced gave each buyer real leverage this file's buyer had already given away.
A 30-minute call is enough to tell you whether AI pays for itself here.
