Buying Property With a Common-Law Partner in Ontario: Legal Risks to Consider

Buying a home with a common-law partner can be an exciting step. For many couples in Ontario, purchasing property together represents stability, commitment, and long-term planning. However, buying real estate as common-law partners can also create legal risks if ownership, contributions, and future expectations are not clearly documented.

Many people assume that common-law partners have the same property rights as married spouses. In Ontario, that is not always the case. If the relationship ends, property ownership may depend heavily on whose name is on title, who contributed financially, and whether there are written agreements in place.

At Mayfair Law Group, we help Ontario buyers understand the legal risks involved in real estate transactions before they sign. If you are buying a property with a common-law partner, getting legal advice early can help prevent future disputes and protect both parties.

Common-Law Partners Do Not Always Have the Same Property Rights as Married Spouses

One of the most important things to understand is that common-law relationships are treated differently from marriages when it comes to property division in Ontario.

When married spouses separate, Ontario's family property rules generally provide a framework for equalization of property. The matrimonial home also receives special legal treatment. Common-law partners, however, do not automatically receive the same property division rights simply because they lived together or were in a long-term relationship.

For common-law partners, property ownership is often tied to legal title. If only one partner is registered as the owner of the home, the other partner may not automatically have a right to share in the property's value if the relationship ends. This can create serious problems when both partners contributed money, paid expenses, or made decisions together without putting those arrangements in writing.

Why Title Matters When Buying Property Together

Title determines legal ownership of the property. If both common-law partners are listed on title, they are both legal owners. If only one partner is listed, that person is generally recognized as the legal owner, even if the other partner contributed to the down payment, mortgage, renovations, or household expenses.

This is why title registration should be discussed carefully before closing. Common-law partners should understand whether they are purchasing as joint tenants or tenants in common.

Joint tenancy usually means both owners share the property together, and if one owner dies, the surviving owner may automatically receive the deceased owner's interest in the property. Tenancy in common allows each owner to hold a specific share, which may be equal or unequal. That share can usually be left to someone else through a will.

Choosing the wrong ownership structure can create unexpected estate, separation, and financial consequences. A real estate lawyer can explain the differences and help buyers choose the structure that reflects their intentions.

Unequal Down Payments Can Create Future Disputes

Many common-law couples do not contribute equally to a home purchase. One partner may provide the full down payment, while the other contributes to mortgage payments. One partner may receive family assistance, use savings, or sell another property to fund the purchase.

If these contributions are not documented, disputes can arise later. For example, if one partner contributed 80 percent of the down payment but both partners are listed equally on title, should the property be divided equally if they separate? If one partner is not on title but helped pay the mortgage for years, do they have any claim to the home's value?

These questions are easier to address before closing than after a relationship breaks down. A written agreement can clarify who contributed what, how ownership is divided, and what should happen if the property is sold.

Mortgage Responsibility Is Separate From Relationship Status

Buying property together usually means applying for a mortgage together. If both partners sign the mortgage, both may be legally responsible for repayment, regardless of their personal relationship.

This can become complicated if the relationship ends. One partner may move out, but the lender may still hold both borrowers responsible for the mortgage. If payments are missed, both credit histories may be affected. If one partner wants to keep the home, refinancing may be required to remove the other partner from the mortgage, but that depends on lender approval.

Common-law partners should understand that being on the mortgage is not always the same as being on title. A person may be responsible for mortgage debt without having the same ownership rights, depending on how the transaction is structured.

What Happens If One Partner Wants to Sell?

Another common issue is what happens if one partner wants to sell the property and the other does not. If both partners are on title, neither person should assume they can simply force the other to cooperate without legal consequences.

A dispute over selling, refinancing, buying out one partner's share, or dividing sale proceeds can become expensive and stressful. If the couple does not have a written agreement, they may end up relying on negotiation, litigation, or court processes to resolve the issue.

Before buying, common-law partners should discuss what will happen if the relationship ends, if one person wants to move, if one partner can no longer afford payments, or if the property must be sold. These conversations may feel uncomfortable, but they can prevent much larger problems later.

Renovations, Repairs, and Ongoing Expenses Should Be Clearly Tracked

Home ownership involves more than the purchase price. Mortgage payments, property taxes, insurance, utilities, maintenance, repairs, renovations, and condo fees can all become sources of disagreement.

If one partner pays for major renovations, does that increase their share of the home? If one partner pays the mortgage while the other pays groceries and utilities, how should those contributions be treated? If family members contribute money toward renovations or the down payment, is that money a gift or a loan?

Clear records matter. Common-law partners should keep documentation of payments, transfers, invoices, receipts, and any agreements about how expenses are shared. This can be especially important if a dispute arises later.

Estate Planning Is Also Important

Buying property with a common-law partner can also raise estate planning concerns. If one partner dies, the outcome may depend on how title is held, whether there is a valid will, and whether the deceased partner's estate or family members have an interest in the property.

For example, joint tenancy may allow the surviving owner to receive the property automatically. Tenancy in common may allow a deceased partner's share to pass through their estate. If there is no updated will, the surviving common-law partner may face unexpected legal and financial challenges.

Common-law partners buying property together should consider reviewing their wills, powers of attorney, beneficiary designations, and broader estate plans.

A Cohabitation Agreement Can Help Protect Both Partners

A cohabitation agreement can be an important tool for common-law partners buying property together. This type of agreement can set out each partner's rights and responsibilities during the relationship and what happens if the relationship ends.

A properly drafted agreement may address ownership shares, down payment contributions, mortgage responsibility, household expenses, sale procedures, buyout rights, renovation costs, dispute resolution, and what happens if one partner dies or moves out.

The goal is not to assume the relationship will fail. The goal is to create clarity so both partners understand their rights and obligations from the beginning.

Why Legal Advice Before Closing Matters

Many property disputes between common-law partners begin because important legal questions were not addressed before the purchase closed. Once the property is bought, it may be much harder to correct ownership structures, mortgage obligations, or contribution disputes.

A real estate lawyer can help review the Agreement of Purchase and Sale, explain title options, identify risks, review mortgage documents, and ensure the transaction reflects the buyers' intentions. Where needed, buyers may also benefit from family law advice regarding a cohabitation agreement.

Legal guidance is especially important when partners are contributing unequal amounts, only one person will be on title, one person is receiving family money, the property is being purchased as an investment, or one partner already owns another property.

Speak With Mayfair Law Group Before Buying Property With a Common-Law Partner

Buying property with a common-law partner in Ontario can be a smart and meaningful decision, but it should not be done casually. Title, mortgage obligations, financial contributions, estate planning, and separation risks should all be carefully reviewed before closing.

At Mayfair Law Group, we help clients understand the legal side of real estate transactions and protect their interests before they sign. If you are buying a home with a common-law partner, our team can help you review your options, understand the risks, and move forward with confidence.

Contact Mayfair Law Group today to speak with an Ontario real estate lawyer before purchasing property with your common-law partner.

FAQ

Do common-law partners have the same property rights as married spouses in Ontario?

No. Common-law partners in Ontario do not automatically have the same property division rights as married spouses. Ownership often depends on whose name is on title and whether there are written agreements or financial contributions that support a legal claim.

What happens if only one common-law partner is on title?

If only one partner is on title, that person is generally the legal owner of the property. The other partner may face challenges claiming an interest in the home unless there is evidence of contributions, an agreement, or another legal basis for a claim.

Should common-law partners buy as joint tenants or tenants in common?

That depends on their goals. Joint tenancy may include survivorship rights, while tenants in common can allow each partner to own a specific share. A real estate lawyer can explain which structure better reflects the couple's intentions.

What if one partner contributes more to the down payment?

Unequal contributions should be documented clearly. Without a written agreement, disputes may arise later about whether ownership should be equal or based on each partner's financial contribution.

Do common-law partners need a cohabitation agreement before buying a home?

A cohabitation agreement is strongly recommended when common-law partners buy property together. It can clarify ownership, expenses, mortgage responsibility, buyout rights, and what happens if the relationship ends.