Home co‑ownership can make owning a property possible where it otherwise wouldn’t be. But like any shared investment, it can also create personal and financial risks if not carefully structured from the outset.
The real estate litigation lawyers at Walker Law see a recurring pattern of co‑ownership disputes arising not from bad faith, but from missing documentation. When parties don’t write their expectations down, courts are left to piece together what they “intended” years later using fragments of emails, text messages, and inconsistent recollections. Most of these disputes could be prevented with clear, properly drafted co‑ownership agreements.
This article explains the concept of home co-ownership and its pros and cons, the different structure of co-ownership available, and what a contract for co-ownership should set out. This article provides general information and should not be interpreted as legal advice.
Walker Law’s Managing Partner, Tanya Walker, has also discussed home co-ownership and the need for a thorough co-ownership agreement in interviews with the Toronto Star and Global News’ News Talk 730 CKNW radio show.
Why Co‑Ownership Is on the Rise
For many first‑time buyers, pooling resources with a friend, or someone that they found on an app is the only realistic way to enter the housing market. It’s an understandable response to high prices and tight lending requirements.
The problem is that many co‑ownerships begin informally. Friends may agree to equally divide the mortgage and share expenses, trusting that good relationships and shared goals will carry them through.
The Pros and Cons of Buying Property Together
Co‑ownership has significant advantages, including:
- Affordability: Sharing down payments and qualifying for a joint mortgage can open doors otherwise closed to solo buyers.
- Shared carrying costs: Dividing mortgage payments, taxes, and maintenance reduces individual financial pressure.
- Better properties: Combined purchasing power lets buyers access larger or better located homes.
- Flexibility: Friends or non-spouses can achieve the benefits of ownership without a marital or familial tie.
- Companionship: In the age of virtual or hybrid work, one may feel more isolated. Co-ownership may provide the roommate that one is looking for.
But there are also clear risks:
- Disagreements: Conflicts over use, maintenance, or finances are common especially when expectations were never recorded in writing.
- Exit complications: If one co-owner wants to sell and the other doesn’t, the only recourse may be a costly application in court.
- Courts have long held that co-owners have a presumptive right to force a sale of property.[i] See how the litigation lawyers at Walker Law have successfully argued a Partition and Sale Application under the Partition Act.[ii]
- Unequal contributions: Without documentation, differing financial inputs can later create resentment or claims of unfairness.
- Credit exposure: A default by one owner affects them all if everyone is on the same mortgage.
- Uncertainty: Courts have no formula for reconstructing missing agreements. Outcomes can surprise everyone involved.
Learn more about the rights and obligations of co-owning property.
What a Co-Ownership Agreement Should Cover
A co-ownership agreement plays a significant role in setting out the rights and responsibilities of co-owners.
- Use and Occupation
Can one owner rent out a basement suite or Airbnb a bedroom? Who decides? The agreement should spell out who will live in the property, what space is shared or private, and whether short- or long-term rentals are allowed. - Financial Responsibilities
Clarify who pays what and when. Mortgage payments, taxes, insurance, repairs, and utilities should all be allocated in writing. The agreement should also set out how to handle payment defaults. - Decision-Making
Daily decisions are one thing, but significant decisions such as renovations, refinancing, or even selling require clear rules. Some choices may require unanimous consent, while others can proceed by majority. - Duration and Exit Strategy
An effective agreement defines how long the property will be held, when it can be sold, and under what conditions one owner can buy out another. It should also include a valuation process and clear timelines for any buy-out or sale. - Dispute Resolution
Not every disagreement warrants a court application. Having a built-in process (for instance, starting first with negotiation, then mediation or arbitration) can preserve both relationships and finances. - Trusts and Title Issues
In some cases, only one person is named on title, but they hold the property ‘in trust’ for others. Holding a property “in trust” means the person on title has legal ownership but must treat some, or all, of that ownership as belonging beneficially to the others, who are recognized in law as co-owners even though they are not on title.
That trust relationship should be documented formally. Failing to document trust relationships can create major problems during refinancing, renewal, or sale. Informal trust arrangements are one of the most common sources of co‑ownership disputes, and it’s a very avoidable problem.
Lessons for Co-Owners and Prospective Home Buyers
For prospective co-owners, buying property together should be treated with the same level of planning as a business partnership. A well-drafted co-ownership agreement can address issues such as financial contributions, decision-making authority, dispute resolution, and how the property may be sold or transferred if circumstances change. Addressing these matters early helps prevent misunderstandings and protects both the investment and the relationship.
Whether you are purchasing property with friends, family members, or other partners, obtaining legal advice before signing an agreement or offer to purchase can help ensure your rights, obligations, and long-term interests are properly protected. The real estate litigation lawyers at Walker Law regularly assist clients in structuring co-ownership arrangements and resolving property disputes when they arise.
Tags: Residential Real Estate Disputes, Civil Litigation Law
[i] Inniss v. Blackett, 2022 ONCA 166 at para. 23; Partition Act, R.S.O. 1990, c. P.4 at s. 2.
[ii] Green et al. v. Gardeazabal, 2023 ONSC 2683.