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№ 22 Real Estate

Writing a Tenants in Common Agreement in Ontario

Co-buying in Ontario? See what a tenants in common agreement should cover: shares, expenses, buyouts, selling, and what happens on death or separation.

Real Estate4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • Land granted to two or more people goes to them as tenants in common unless a joint tenancy is clearly intended, even for spouses.
  • Each co-owner can be liable for the whole mortgage debt unless the charge says otherwise, so private payment rules matter.
  • Without agreed exit terms, a co-owner may be able to apply to court for partition or sale.

Buying a home or investment property with a friend, sibling or partner is common, but the paperwork that registers title does not answer most day-to-day questions. Who pays for a new roof? What if one person wants out? What happens on death?

A written tenants in common agreement lets you answer those questions in advance. Its terms are a matter of contract between you, so there is no fixed form. This article sets out what to think about and why.

Why a written agreement helps

Unless the instrument shows an intention to create a joint tenancy, land granted to two or more people goes to them as tenants in common, and this applies even if they are spouses. The default tells you how title is held, but it does not set out how you share costs, make decisions or leave the arrangement.

A share held as a tenant in common does not carry the right of survivorship that joint tenants have. That is why death and estate planning deserve their own clause.

Clauses to consider

None of these clauses is set by a statute, so the wording is up to you. Clear wording is the point: vague terms invite disagreement later.

Mortgage and default clauses

Where there are several chargors, the covenants implied in a registered charge, including paying the mortgage money, are made jointly and severally unless the charge says otherwise. Each co-owner can therefore be liable for the whole debt. Your agreement cannot change what the lender can claim, but it can set out how co-owners must make each other whole.

Lenders must also follow a process before power of sale: the default must continue at least 15 days before notice is given, and the sale cannot happen until at least 35 days after notice. A default clause with short internal deadlines helps owners act well inside those periods.

Exit rights, court sales and spouses

Joint tenants and tenants in common may be compelled to make or suffer partition or sale of the land. The Court of Appeal for Ontario holds that co-owners have a prima facie right to force a sale. The court refuses only if the applicant is acting maliciously, vexatiously or oppressively, and age, illness and claimed hardship were not enough in Inniss v. Blackett.

An agreement can set a process, such as notice periods, valuation and buyout first, before anyone goes to court. Whether a court would enforce a given waiver of partition rights is a question for a lawyer.

Spouses should know that a spouse may not dispose of or encumber an interest in a matrimonial home unless the other spouse joins or consents, has released their rights by separation agreement, or a court order authorizes it. Where land passed by will or on intestacy, no partition proceeding may be taken until one year after the death.

What to do next

Frequently asked questions

Do spouses automatically own as joint tenants?

No. Unless the instrument shows an intention to create a joint tenancy, land goes to the owners as tenants in common, even if they are spouses. If you want a different result, the transfer should say so.

Is a tenants in common agreement required by law?

No statute requires one, and its terms are a matter of contract between the owners. It is still a sensible way to settle shares, costs and exit terms in advance.

Can one co-owner force a sale even with an agreement?

Co-owners have a prima facie right to apply for partition or sale, and a court may refuse only in limited cases. Whether your agreement limits that right depends on its wording, so a lawyer should review it.

What happens to my share if I die?

A tenant in common's share does not carry the right of survivorship. What happens to it depends on your will or the agreement, which is why both should be consistent.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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