What Are My Legal Next Steps After Discovering My Spouse Is Cheating in Canada?

Should I Talk to a Lawyer Before Confronting My Spouse?

Absolutely — this is the single most important step you can take right now. Since your husband has already consulted a lawyer, you need to level the playing field immediately. A family law lawyer can help you understand your rights to the matrimonial home, property division, parenting arrangements, and spousal support before any confrontation changes the dynamic.

Under Canada's Divorce Act, R.S.C. 1985, c. 3 § 8, you can file for divorce on the grounds of adultery, one year of separation, or cruelty. However, approximately 90% of Canadian divorces proceed on the one-year separation ground because proving adultery requires corroborating evidence beyond your own testimony, adding cost and complexity.

Can I Legally Kick My Husband Out of the House?

Generally, no — not without a court order. In Canada, both spouses have an equal right to occupy the matrimonial home regardless of whose name is on the title. Under provincial family law statutes — such as Ontario's Family Law Act § 24 or British Columbia's Family Law Act § 90 — neither spouse can lock the other out without a court-ordered exclusive possession order.

To obtain exclusive possession, you typically must demonstrate that remaining together poses a risk to the physical or emotional well-being of you or your children. Courts consider factors including the best interests of any children, financial hardship, and any history of family violence. Statistics Canada reports that roughly 40% of marriages in Canada end in divorce, and contested home possession orders remain one of the most litigated interim issues.

What Should I Do Right Now to Protect Myself?

1. Gather financial documentation. Before your spouse knows you are aware, quietly collect or photograph records of bank accounts, investments, pensions, tax returns, mortgage statements, and credit card statements. Under Canadian law, both spouses owe a duty of full financial disclosure — but having your own copies prevents anything from disappearing. Use our property division calculator to start estimating your entitlements.

2. Open a separate bank account. Deposit enough to cover immediate expenses. Courts will not penalize you for securing basic living funds, but withdrawing large lump sums could raise issues.

3. Document the adultery carefully. While adultery has no direct impact on property division in most Canadian provinces, it can be relevant if your spouse dissipated marital assets on the affair — for example, expensive gifts, trips, or transfers to a third party. Courts can adjust the equalization payment to account for this.

4. Understand parenting arrangements. Under the Divorce Act § 16.1, parenting arrangements and decision-making responsibility are determined solely by the best interests of the child. A parent's infidelity does not, by itself, affect parenting time allocation. Roughly 80% of Canadian parenting arrangements involve some form of shared parenting time.

Does Adultery Affect Property Division or Support?

Canadian property division is governed by provincial legislation and is almost entirely no-fault. In Ontario, the Family Law Act § 5 requires an equalization of net family property regardless of marital misconduct. Spousal support under the Divorce Act § 15.2 is similarly based on need, means, and the Spousal Support Advisory Guidelines — not fault.

The exception: if your spouse spent significant marital funds on the affair, you may have a claim for dissipation of assets, which a court can factor into the equalization calculation.

Your situation is time-sensitive. Find a family law attorney in your province who can provide a confidential initial consultation. For more on navigating this process, read our guide to divorce basics in Canada and browse more questions at Divorce Questions.

This information is general legal education, not legal advice. Laws vary significantly by province. Consult a family law lawyer in your jurisdiction for guidance specific to your situation.