Published 10 September 2026 · By Jatin Dua, Broker of Record, RE/MAX Quantum Realty
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Under Ontario’s Family Law Act, a matrimonial home is treated differently from every other asset. Section 19(1) gives both married spouses an equal right to possession. Section 21(1) says no spouse may dispose of or encumber an interest in a matrimonial home unless the other joins in or consents, has released their rights in a separation agreement, a court order authorises it, or another property has been designated. And under section 4 the date-of-marriage deduction that normally applies to property does not apply to a matrimonial home. None of Part I applies to common-law partners — “spouse” there means married. That single distinction changes everything.
What counts as a matrimonial home
Section 18(1) is broader than people expect: every property in which a person has an interest and that is, or at the time of separation was, ordinarily occupied by that person and their spouse as their family residence is their matrimonial home. Ownership of shares in a corporation entitling the owner to occupy a housing unit is deemed to be an interest in the unit for this purpose — which brings co-operative housing into scope.
Two practical consequences follow. There can be more than one matrimonial home — a cottage ordinarily occupied as a family residence can qualify. And whose name is on title does not determine the status: a home owned solely by one spouse can still be a matrimonial home with all the protections that attach.
The three rules that shape any sale
1. Equal right to possession
Section 19(1): both spouses have an equal right to possession of a matrimonial home. Where only one spouse has an ownership interest, the other’s right of possession is personal as against that spouse and ends when they cease to be spouses, unless a separation agreement or court order provides otherwise.
In plain terms, the spouse who is not on title does not have to leave simply because they are not an owner. Changing the locks is not a remedy available to you.
2. No disposition or encumbrance without consent
Section 21(1) is the one that stops listings. No spouse shall dispose of or encumber an interest in a matrimonial home unless:
- the other spouse joins in the instrument or consents to the transaction;
- the other spouse has released all rights under Part I by a separation agreement;
- a court order has authorised the transaction or released the property from the application of Part I; or
- the property is not designated by both spouses as a matrimonial home and a designation of another property, made by both spouses, is registered and not cancelled.
Section 21(2) allows a transaction made in contravention to be set aside, subject to protections for a purchaser without notice. What this means in practice: a sale that gets to closing without the non-titled spouse’s consent is a problem for everyone in the transaction, and your lawyer will not let it happen.
3. The matrimonial home is not deducted at the date of marriage
Under section 4, the value of property a spouse owned on the date of marriage is deducted in calculating net family property — other than a matrimonial home. So if you owned the house before you married and it was the matrimonial home on the valuation date, its full value can go into the calculation rather than only its growth. This is one of the most consequential and least understood provisions in Ontario family law, and it is a matter for a family lawyer, not a real estate agent.
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Jatin Dua, Broker of Record — RE/MAX Quantum Realty Inc., Brokerage. Not intended to solicit buyers or sellers currently under contract with another brokerage.
If you were never married, almost none of this applies
In Part I of the Family Law Act — the property provisions — “spouse” means two persons who are married to each other, or who entered into a marriage that is voidable or void in good faith. Common-law partners are not included.
The consequences are stark:
- No equalisation of net family property.
- No matrimonial home rights. No automatic right of possession, and no section 21 consent requirement.
- Title is largely determinative, subject to trust claims — resulting trust and unjust enrichment — which are argued, expensive and uncertain.
Where both partners are on title as co-owners and one will not sell, the route is generally an application under the Partition Act, which allows a co-owner to seek partition or sale. It is a real remedy and it is slower and more expensive than agreeing.
The four ways the house comes out of a separation
| Route | How it works | Main issues |
|---|---|---|
| Sell and divide | List, sell, pay out the mortgage and costs, divide the net proceeds per the agreement or order | Cleanest financially; requires cooperation on price, timing and process |
| One spouse buys the other out | A transfer of the interest, usually with a new mortgage in one name | The buying spouse must qualify alone at the stress-tested rate; valuation must be agreed |
| Deferred sale | Both remain on title, one occupies, sale at an agreed future trigger | Needs a written agreement covering costs, maintenance, refinancing and the trigger |
| Court-ordered sale | An order for sale, sometimes with terms about listing and price | Slowest and most expensive; sometimes the only route |
Running the sale itself
- Both spouses sign the listing agreement where both are on title, and the non-titled spouse’s position is addressed where section 21 applies.
- Agree the process in advance — price, offer handling, and who decides. If you cannot, the lawyers should set it out.
- Deal with occupancy honestly. A house showing well is a house that is being maintained and vacated for showings. That requires a schedule people will actually follow.
- Direct the proceeds to trust. Do not attempt to divide funds on closing day without a written agreement or order.
- Keep the agent out of the dispute. Your agent’s job is to get the best result for the property. They are not a mediator, they are not a lawyer, and they should not be carrying messages.
- Sort out the mortgage early. A buyout requires the remaining spouse to qualify alone, at the qualifying rate, and lenders will want the separation agreement.
The numbers, in Etobicoke terms
TRREB reported an average Etobicoke sale price of $1,049,793 across 243 sales in August 2026. Two figures matter alongside it.
Selling costs. Real estate commission, legal fees, any mortgage discharge or prepayment charge, and the cost of preparing the property come off the top before anything is divided. Agree how they are shared before listing.
Buying costs on the next home. Etobicoke is inside the City of Toronto, so a purchase here attracts both the provincial and Toronto municipal land transfer taxes, in cash. At the August 2026 average that is roughly $17,475 each — about $35,000 — and it must be budgeted separately from the down payment. Two households replacing one both face that bill.
The order to do things in
- Speak to a family lawyer before you list, before you move out, and before you agree to anything about the house.
- Establish whether the property is a matrimonial home and who has what rights.
- Get a value: an appraisal, or a written opinion from an agent both parties accept.
- Decide which of the four routes applies.
- Have the lawyers put the listing and proceeds instructions in writing.
- Then, and only then, list.
Frequently asked questions
Can my spouse sell the house without my consent in Ontario?
Not where it is a matrimonial home. Section 21(1) of the Family Law Act prohibits a spouse from disposing of or encumbering an interest in a matrimonial home unless the other spouse joins in or consents, has released their Part I rights in a separation agreement, a court order authorises it, or another property has been designated as the matrimonial home by both spouses and that designation is registered and uncancelled.
What counts as a matrimonial home?
Under section 18(1), every property in which a person has an interest that is — or, if the spouses have separated, was at the time of separation — ordinarily occupied by that person and their spouse as their family residence. There can be more than one, a cottage can qualify, and ownership of shares entitling the owner to occupy a housing unit is deemed an interest in the unit. Whose name is on title does not determine the status.
Do I have to move out if the house is in my spouse’s name?
No. Section 19(1) gives both spouses an equal right to possession of a matrimonial home. Where only one spouse has an ownership interest, the other’s right of possession is personal as against that spouse and ends when they cease to be spouses, unless a separation agreement or court order says otherwise. Speak to a family lawyer before making any decision about leaving.
What if we are common-law rather than married?
The property provisions in Part I of the Family Law Act define “spouse” as married persons, so common-law partners get no equalisation and no matrimonial home rights. Title is largely determinative, subject to trust claims such as resulting trust and unjust enrichment, which are argued rather than automatic. Where both are on title and one will not sell, the Partition Act is generally the route.
Can one co-owner force a sale?
Where the parties are co-owners on title, a co-owner can apply under the Partition Act for partition or sale, and courts have generally treated that as a strong right subject to limited defences. It is real, and it is slower and more expensive than negotiating. Where the property is a matrimonial home, the family law framework and any proceeding between the spouses will also bear on the outcome.
Should we sell or should one of us buy the other out?
That is a financial and legal question rather than a real estate one. A buyout requires the remaining spouse to qualify for a mortgage alone at the stress-tested qualifying rate and requires an agreed value. Selling is financially cleaner and divides costs and market risk, but it means both parties re-enter the market and both face closing costs on a replacement home.
What happens to the sale proceeds on closing?
Commonly they are directed into a lawyer’s trust account pending the separation agreement or court order, rather than divided on closing day. Agree this in writing before the property is listed. Selling costs — commission, legal fees, mortgage discharge or prepayment charges and preparation costs — come off the top, so agree how those are shared as well.
Should we use the same real estate agent?
Usually yes, on the sale itself, because one agent marketing the property to the widest audience produces the best result and both parties benefit from that. What matters is that instructions come through the lawyers in writing, that both parties know who has authority to accept an offer, and that the agent is not put in the position of mediating. If either party is buying afterwards, that is a separate representation question.
Sources
- Family Law Act, R.S.O. 1990, c. F.3 — s. 1 definition of “spouse”, s. 4 net family property, s. 18 matrimonial home, s. 19 possession, s. 21 disposition and encumbrance. Accessed 10 September 2026.
- Partition Act, R.S.O. 1990, c. P.4 — applications by co-owners for partition or sale. Accessed 10 September 2026.
- Ontario Ministry of Finance — Land Transfer Tax — the provincial brackets behind the replacement-home cost figures. Accessed 10 September 2026.
- TRREB Market Watch, August 2026 — the Etobicoke average sale price of $1,049,793 across 243 sales. Accessed 10 September 2026.
Related reading
- When a co-owner will not sell: the Partition Act
- Buying a home together without being married in Ontario
- What a real estate lawyer actually does in Ontario
- Divorce and selling a luxury home in Ontario
- Why your Etobicoke house is not selling
About the author — Jatin Dua, Etobicoke real estate agent
I am Jatin Dua, Broker of Record at RE/MAX Quantum Realty Inc., Brokerage, Unit 101, 799 The Queensway in Etobicoke, with more than four years of active GTA transactions and over $100M in sales volume. In these sales my job is to keep the property in the best possible position while the lawyers do theirs, and the sales that go well are the ones where the instructions were written down first.
Reach me at connect@jatindua.com or 833-330-1925.