Domestic Contracts · Toronto & Markham

Prenup & Marriage Contract Lawyer

Ontario law has default rules for how property and support are handled if a marriage or common-law relationship ends. A marriage contract (prenuptial agreement), postnuptial agreement, or cohabitation agreement lets you and your partner define different terms before those defaults apply — on your own schedule, with full legal advice. Flat fees for straightforward matters.

Request a Free Consultation (647) 539-2036
Law Society of Ontario Flat Fees for Straightforward Matters Toronto & Markham

Why a Marriage Contract Matters

In Ontario, marriage automatically triggers the equalization of net family property under the Family Law Act. Without an agreement, the law decides how assets divide if the relationship ends — regardless of what you both intended. A marriage contract sets your own terms, in advance.

Pre-existing Assets

Protect property, savings, or a business you brought into the relationship.

Family Inheritances

Keep inherited property or family wealth separate from the equalization calculation.

Spousal Support

Address support obligations in advance, on terms you both agree to.

Agreements We Prepare

Marriage Contracts (Prenuptial Agreements)

Signed before or during marriage, a marriage contract under Part IV of the Family Law Act can address ownership and division of property and spousal support. It must be in writing, signed, and witnessed, with honest financial disclosure from both parties.

Postnuptial Agreements

Already married? Ontario law treats a marriage contract signed after the wedding the same as one signed before it. Couples often put a postnup in place after a significant change — starting a business, receiving an inheritance, or relocating to Ontario.

Cohabitation Agreements

Common-law partners are not subject to automatic property equalization, but claims such as unjust enrichment can still arise, and support obligations can apply. A cohabitation agreement defines property and support terms — and if you later marry, it can continue as your marriage contract.

Independent Legal Advice (ILA)

Received a draft agreement from your partner's lawyer? Each party must have their own lawyer for the agreement to be reliable. We review the agreement with you, explain your rights and what you are giving up, and provide a certificate of independent legal advice.

Fees

ServiceFee
Marriage contract / prenuptial agreement — draft and advise one party (flat fee, straightforward matters)From $2,000 + HST
Cohabitation agreement — draft and advise one partyFrom $2,000 + HST
Independent legal advice on a domestic contract, with certificateFrom $750 + HST
Complex asset structures, billed on a time basis$300/hr + HST
We represent one party only. Each party to a marriage contract must obtain independent legal advice for the agreement to be enforceable under Ontario law. A written retainer agreement is provided before any work begins.

Timing Matters

An agreement signed days before a wedding invites a later argument that it was signed under pressure. Start the process early — ideally months before the wedding — so both parties have time for financial disclosure, negotiation, and independent legal advice without deadline pressure.

Frequently Asked Questions

Are prenups legally binding in Ontario?
Yes — marriage contracts are recognized under Part IV of Ontario's Family Law Act, provided they are in writing, signed, and witnessed, with honest financial disclosure. A court can set aside an agreement where a party failed to disclose significant assets or debts, did not understand the agreement, or where grounds such as duress apply. Independent legal advice for each party substantially strengthens enforceability.
Can we sign a marriage contract after the wedding?
Yes. A postnuptial agreement is treated the same way under the Family Law Act as one signed before the wedding.
What can't a marriage contract cover?
It cannot limit rights to possession of the matrimonial home under Part II of the Family Law Act, and it cannot pre-determine decision-making responsibility or parenting time for children — those are decided based on the child's best interests at the time.
Do both partners need their own lawyer?
Each party should receive independent legal advice from their own lawyer. We represent one party only, and provide ILA with certificate from $750 + HST if the agreement was prepared by the other party's lawyer.

Planning Ahead Together

Tell us about your situation and timeline through the intake form. Free 30-minute consultation; flat-fee quote before any work begins.

Start Your Intake (647) 539-2036