Treadstone Associates
Case File · Offers & Negotiation

An offer signed by only one of two owners

A Hamilton seller, sole owner on title, listed and accepted an offer on his house without realizing that his spouse’s consent was a separate, later requirement his own signature could not satisfy.

Treadstone Associates · Updated 2026

At a glance

  • • Hamilton, Ontario — title held solely in the husband’s name; the property was the couple’s ordinary, occupied family residence.
  • • The listing agreement and the accepted Agreement of Purchase and Sale were both signed by the husband alone, with no reference to his wife.
  • • The buyer’s lawyer requested the standard spousal statutory declaration before closing and learned the property was a matrimonial home with no consent obtained.
  • • The deal closed nine days late, after the wife signed the required consent, and only because the gap surfaced before closing rather than after.

The situation

A Hamilton homeowner listed his house for sale. Title was in his name alone — a common arrangement where one spouse bought the property before the marriage or refinanced it solely at some point — and he signed both the listing agreement and, once an offer came in, the Agreement of Purchase and Sale as the only named seller. Nobody on the listing side asked whether he was married or whether the house was occupied as a family residence.

The problem

Signing the listing agreement alone was not, by itself, the defect. Treadstonelaw draws a specific line between the two steps: “a titled spouse can often enter into a listing agreement on their own, since listing alone doesn’t dispose of or encumber an interest in the property the way completing a sale does” — the real legal requirement kicks in only “at the point of actually accepting an offer and completing a transaction that would convey the matrimonial home,” which under the Family Law Act “cannot happen without the other spouse’s consent or a court order, regardless of whose name is on title.”

That second step is exactly where this file was exposed. The husband signed the accepted offer alone, and the buyer’s lawyer, following standard practice, requested a spousal consent or a statutory declaration confirming marital status before closing — the mechanism treadstonelaw describes as protecting “both the non-consenting spouse’s rights and an innocent buyer’s interests.” The wife had never been told the house was listed.

The numbers

The purchase agreement was signed and firm nine days before the missing consent surfaced through the buyer’s lawyer’s standard closing checklist — not through anything either agent flagged.

Closing was delayed nine days while the wife obtained independent legal advice and signed the consent; no price renegotiation was needed once she agreed.

Had she refused, the exposure would not have been a fixed number: treadstonelaw is explicit that an agreement missing required spousal consent is “generally voidable, not automatically void” — open to being set aside at her request, with the buyer’s protection turning on whether they had relied in good faith on a proper statutory declaration.

The rule that decided it

Two separate rules were in play, and conflating them is the trap. The Family Law Act consent rule is not about whose name is on title at all — it protects a non-titled spouse’s interest in the family residence regardless of ownership. This is distinct from the general co-ownership rule, which treadstonelaw states plainly for property actually held in more than one name: “a co-owner generally cannot sell the entire property without the consent of every other registered owner.” This husband was the sole registered owner — the general co-ownership rule did not apply to him at all — but the matrimonial-home rule applied anyway, because it runs off marital status and occupancy, not title.

The consequence, sourced from the same article: “even a sole owner spouse…needs the other spouse’s consent to sell a matrimonial home” — a rule the title search alone would never surface, since the wife’s name appeared nowhere on the deed.

The outcome

Once contacted, the wife retained her own lawyer, confirmed she had no objection to the sale itself, and signed the consent within the week. Closing moved nine days but did not collapse. The listing agent now asks every new seller directly — regardless of whose name is on title — whether the property is occupied as a spouse’s or common-law partner’s primary residence, and flags it to the file’s lawyer before an offer is even accepted rather than waiting for a buyer’s closing checklist to catch it.

The tell

The tell was never on the title search — it was in a question nobody asked at the listing appointment. Marital status and occupancy are not fields the Land Registry Office records, so a deal can look completely clean on paper right up to the point a buyer’s lawyer requests the statutory declaration every well-run closing already asks for. Waiting for that request to surface the issue works, but it works late, with only days left before an agreed closing date. Asking at the listing stage, before an offer is even drafted, avoids the delay entirely.

Related reading: the glossary entry on what a matrimonial home actually is under the Family Law Act, and a different file where a missing signature came from an estate rather than a marriage: an estate sale with two executors disagreeing.

Takeaways

  • • Signing a listing agreement and completing a sale are legally different steps — only the second requires the non-titled spouse’s consent under the Family Law Act.
  • • The matrimonial-home consent rule applies regardless of whose name is on title, so a title search alone will not reveal the requirement.
  • • An agreement missing required spousal consent is voidable, not automatically void — the non-consenting spouse can seek to set it aside, and a good-faith buyer relying on a proper statutory declaration may still be protected.
  • • This is a different rule from general co-ownership, where every registered owner’s signature is required simply because their name is on the deed — ask about marital status even when only one name is on title.

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