In Ontario, common-law spouses do not have an automatic right to equalize property. To claim a share of a partner’s business or real estate, you must file a “constructive trust” claim for unjust enrichment. Under the Real Property Limitations Act, you generally have up to 10 years to claim an interest in real estate, but only 2 years under the Limitations Act for pure monetary or business claims.
Living together for years, building a life, and even running a business together might feel exactly like a marriage. However, under the Ontario Family Law Act, common-law spouses are treated completely differently than legally married couples when the relationship ends. 📜 If you are married and divorce, the value of all family property is automatically equalized. If you are common-law, you generally leave the relationship with exactly what is in your own name. If your partner owns a lucrative business that you helped build, you have no automatic legal right to a share of its value.
To fix this inherent unfairness, Ontario family courts allow common-law partners to sue for “unjust enrichment” by claiming a “constructive trust.” This legal concept argues that your partner unjustly profited from your unpaid labour or financial contributions, and it would be unfair for them to keep 100% of the business or property. However, this is not an open-ended right. The clock starts ticking the moment you separate, and missing the strict provincial limitation periods will permanently destroy your case. Here is a guide on how to protect your rights, the timelines involved, and the steps to file your claim.
Step-by-Step Process in Ontario
Pursuing a constructive trust is complex civil litigation. Whether you are consulting a family law firm in Toronto, Brampton, or Windsor, the procedure heavily involves the Superior Court of Justice. You must prove that your contributions directly increased the value of the asset.
Step 1: Proving Unjust Enrichment
Before you can claim a constructive trust, you must establish the foundation of your case. 📈 You need to prove three elements to an Ontario judge: first, that your ex-partner received a benefit (e.g., their business grew); second, that you suffered a corresponding loss (e.g., you worked for free, gave up your own career, or contributed cash); and third, that there is no legal reason for them to keep the benefit (like a prior contract or a gift).
Step 2: Determining the Correct Limitation Period
Timing is everything. In Ontario, the limitation period depends on exactly what you are asking the court for. If you are asking for a monetary payout based on the business’s value, the standard Limitations Act, 2002 applies, giving you exactly 2 years from the date of separation to file your lawsuit. However, if you are asking the court to grant you actual ownership (title) in real estate tied to the business, the Real Property Limitations Act may allow you up to 10 years. A lawyer must confirm which timeline applies to your specific case.
Step 3: Establishing a Joint Family Venture
If you cannot tie your contributions to a specific piece of equipment or property, you can try to prove a “Joint Family Venture.” 👪 This involves showing the court that you and your partner pooled your efforts, integrated your finances, and prioritized the family unit over individual wealth. If a judge agrees a joint family venture existed, they will award you a percentage of the total wealth accumulated during the relationship, rather than tying it to a single business asset.
Step 4: Filing an Application at the Superior Court
You cannot settle a constructive trust dispute at a local family service counter. You must formally issue an Application or Statement of Claim at the Superior Court of Justice. This process involves submitting sworn affidavits detailing every hour of unpaid labour, every financial contribution, and providing forensic accounting of the business’s growth during your relationship.
How Much Does it Cost in Ontario?
Constructive trust claims are notoriously document-heavy and highly contested. Litigation is an expensive process, and you should prepare for significant legal fees. 💵 Here is what you can expect in CAD:
- Court Filing Fees: Initiating an Application in the Ontario Superior Court of Justice (Family Court) costs $214 CAD, with an additional $445 CAD to set the matter down for a hearing or trial (pursuant to O. Reg. 417/95, as amended, with further indexing postponed to 2027 by O. Reg. 396/25).
- Business Valuator / Accountant: To prove the business grew due to your efforts, you will need an expert valuation report, which usually costs $5,000 to $15,000 CAD.
- Family Lawyer Retainer: A law firm will generally require an initial retainer of $5,000 to $10,000 CAD to start the lawsuit.
- Total Trial Costs: If the dispute cannot be settled through mediation and proceeds to a full trial, total legal fees can easily range from $30,000 to $75,000+ CAD per party.
| Type of Legal Claim | Ontario Limitation Period | Likely Outcome if Successful |
|---|---|---|
| Monetary Compensation | 2 Years (from separation) | A lump-sum cash payment for unpaid labour |
| Interest in Real Property | 10 Years (from separation) | Your name added to the property title |
| Joint Family Venture | 2 Years (typically) | A percentage of the overall wealth created |
How Long Does the Process Take?
Litigating a constructive trust is a marathon, not a sprint. Building the case, gathering historical financial records, and exchanging discoveries with your ex-partner usually takes 8 to 12 months. If the case requires a formal trial in the Ontario Superior Court of Justice, you will be subject to severe court backlogs. Expect the entire legal journey, from filing the claim to receiving a final judge’s decision, to take anywhere from 1.5 to 3 years.
Frequently Asked Questions (FAQ)
Do I have an automatic right to half of my common-law partner’s business?
No. Unlike married couples, common-law partners in Ontario do not have an automatic right to a 50/50 split of the Net Family Property. You must affirmatively prove to the court that your specific contributions enriched your partner and that you deserve a share via a constructive trust.
What counts as a “contribution” to the business?
Contributions can be direct or indirect. Direct contributions include investing your own money into the business or working there without a salary. Indirect contributions include raising children and managing the household, which freed up your partner’s time to focus exclusively on growing their business.
Can a Cohabitation Agreement stop me from claiming a constructive trust?
Yes. If you and your partner signed a legally binding Domestic Contract (Cohabitation Agreement) in Ontario that explicitly waives your right to claim unjust enrichment or a constructive trust over the business, the court will generally enforce the contract and dismiss your claim.
What happens if I miss the 2-year limitation period?
If you fail to file your Statement of Claim within the strict 2-year window for monetary claims, you are generally “statute-barred.” This means your right to sue is permanently lost, regardless of how strong your evidence is, unless a specific exception under the Real Property Limitations Act applies to your case.
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