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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Family Law & Divorce Ontario » Suing a Former Spouse for Financial Fraud Committed During Marriage in Ontario

Suing a Former Spouse for Financial Fraud Committed During Marriage in Ontario

29 Jun 2026 4 min read No comments Family Law & Divorce Ontario
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In Ontario, discovering that your spouse secretly drained joint accounts or forged your signature on a second mortgage is devastating. You are not limited to standard family law property division; generally, you can sue your ex-spouse in the Superior Court of Justice for the civil “tort of deceit” to recover stolen funds and claim additional financial damages.

Marriage is a financial partnership built on absolute trust, but unfortunately, financial betrayal is surprisingly common across Ontario. Whether you reside in Toronto, Ottawa, or Mississauga, discovering that your spouse has committed financial fraud during your marriage can completely destroy your future security. Secret credit cards, forged mortgage documents on the matrimonial home, or quietly siphoned retirement savings are severe betrayals that standard divorce proceedings sometimes struggle to address fully.

Typically, when a marriage ends, spouses calculate their Net Family Property (NFP) and equalize the growth. 📈 However, if one spouse actively lied, forged documents, or hid massive debts, this standard math fails to deliver justice. In these extreme cases, family law intersects with civil litigation. Working with a dedicated Ontario family lawyer, you may be entitled to join a civil claim-specifically the tort of deceit-with your divorce application. This allows a judge to award you specific damages for the fraud, completely separate from your regular equalization or spousal support entitlements.

Step-by-Step Process for Claiming Fraud in an Ontario Divorce

Pursuing a civil tort claim alongside a family law application requires strategic, aggressive litigation. You must prove that the spouse intentionally lied, that you relied on that lie, and that you suffered actual financial loss. Here is how the process generally unfolds.

Step 1: Securing Your Remaining Finances

The moment you discover the financial fraud, immediate action is required to stop the bleeding. Contact your banks in Brampton or Hamilton to freeze joint accounts and cancel shared credit cards. You must pull your official credit report from Equifax or TransUnion Canada to identify any secret loans or mortgages taken out in your name without your knowledge.

Step 2: Retaining a Forensic Accountant

Proving the tort of deceit requires a flawless paper trail. 🔍 Your law firm will likely recommend hiring a forensic accountant. These financial experts will meticulously trace the missing funds, uncover hidden offshore accounts, and determine exactly when and how the fraudulent second mortgage or line of credit was acquired.

Step 3: Filing a Joint Family and Civil Application

In Ontario, you do not necessarily need to file two separate lawsuits. Your family lawyer can file an Application at the Superior Court of Justice that requests a divorce, spousal support, and equalization, while simultaneously pleading the civil tort of deceit. Consolidating these claims saves time and ensures the family court judge sees the full picture of the betrayal.

Step 4: Seeking a Mareva Injunction (Freezing Order)

If there is a high risk that your deceptive spouse will flee the country or hide the remaining money, your lawyer may apply for an emergency Mareva Injunction. 🚨 This is a powerful court order that temporarily freezes their personal bank accounts and assets across Canada, ensuring there is actually money left to recover by the time you win your trial.

Step 5: The Discovery and Questioning Phase

During the litigation, your spouse will be legally forced to sit for an examination under oath (Questioning). Your lawyer will cross-examine them on their forged signatures, hidden debts, and false financial statements. Lying during this phase constitutes perjury, heavily tipping the judge in your favour for a substantial damages award.

How Much Does it Cost to Sue for Financial Fraud in Ontario?

Combining complex civil fraud litigation with a divorce is inherently expensive. However, recovering your stolen life savings is often worth the aggressive legal investment.

Expense TypeEstimated Cost in CAD (2026)Details
Superior Court Filing Fees$214 – $224Basic government fee to file an Application under O. Reg. 417/95 (plus an additional $445 to place the matter on the trial list later).
Forensic Accountant Fees$5,000 – $15,000+Essential for tracing hidden offshore accounts or proving a forged mortgage transaction.
Lawyer Retainer (Litigation)$10,000 – $35,000+Complex tort claims require extensive evidence gathering, motions, and trial preparation.
Cost AwardsVariable BenefitIf you prove fraud, the judge may order your ex-spouse to pay a large portion of your legal fees.

How Long Does the Process Take?

Unraveling years of financial deceit takes significant time. While emergency freezing orders (injunctions) can be obtained in a matter of days or weeks, a full trial involving a civil tort combined with a divorce is a marathon. Depending on court backlogs in busy jurisdictions like Toronto or London, completing the mandatory financial disclosures, mediations, and reaching a final trial can easily take 2 to 3 years.

Frequently Asked Questions (FAQ)

What happens if my spouse spent all the stolen money?

If the cash is gone, the judge can make an unequal division of your Net Family Property. This means you may be awarded a much larger share of the matrimonial home or their pension to compensate for the money they fraudulently squandered.

Can I press criminal charges as well?

Yes. Forging a signature on a mortgage is a serious criminal offence in Canada. You can report the fraud to the local police, and they may lay criminal charges entirely separate from your family court lawsuit.

Does unequal equalization cover financial fraud?

Sometimes. Under the Family Law Act, a judge can order unequal division if equalizing would be unconscionable due to reckless depletion of assets. However, pleading the tort of deceit allows you to claim specific punitive damages on top of property division.

What if they hid the debt before we even got married?

If they hid massive debt before signing a Marriage Contract (prenup), you can apply to have the entire contract set aside due to fraudulent financial non-disclosure under Section 56 of the Family Law Act.

Can I sue the bank that approved the forged mortgage?

Potentially. If the bank or the mortgage broker failed to perform basic identity verification checks, your civil litigation lawyer might advise adding them as a co-defendant in your lawsuit for professional negligence.

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