Cohabitation Agreement and Marriage Contracts

The process of creating a cohabitation agreement or marriage contract typically follows these steps:

  • Income
  • Assets (e.g., real estate, investments, pensions)
  • Debts and liabilities
  • Business interests
  • Ownership of property brought into the relationship
  • Treatment of jointly acquired assets
  • Spousal support waivers or entitlements
  • Rights to the matrimonial home
  • Debt allocation

Without a cohabitation agreement or marriage contract, Ontario’s default family law rules apply:

  • Married couples may be subject to equalization of net family property, which can result in sharing assets acquired or that grew in value during the marriage.
  • Unmarried couples do not have automatic property rights, but may make claims against the other parties’ property based on contributions to it or to the family’s life more generally (these arguments typically involve legal concepts such as constructive and resulting trust, unjust enrichment and “joint family venture”).
  • Spousal support may be claimed based on compensation or need based principles.
  • The matrimonial home has special protections for married couples, including equal rights to “possess” or live in it, regardless of which spouse holds legal title.

An agreement allows couples to modify, or in some cases opt out of, these default rules and create their own framework.

Timely answers
Timely answers

Yes. Cohabitation agreements and marriage contracts can be:

  • Amended by mutual consent
  • Replaced with a new agreement
  • Terminated if both parties agree
  • Changed or set aside by the court in certain limited circumstances

When a change is made to a marriage contract or cohabitation agreement, the change must be made in writing and signed with the same formalities as the original agreement. It’s wise to seek legal advice before making changes.

Are these agreements legally binding?

Yes, if properly drafted, signed, and supported by financial disclosure and independent legal advice.

Can we make an agreement after we’re already married or living together?

Yes. Marriage contracts can be signed before or after marriage. Cohabitation agreements can be signed at any time during the relationship.

Can we include parenting arrangements?

To a very limited extent, you can address the right to direct a child’s education and moral training. But such agreements are not binding on the court in the event of a future dispute and in such cases are determined based on the child’s best interests at the time of separation.

Can we waive spousal support?

Yes, but the waiver must be fair and informed. Courts may override waivers in cases of hardship or unfairness.

Do we need lawyers?

While not strictly required, independent legal advice is important and increases the chances that the agreement will be found fair and enforceable if challenged later.

Can the agreement be challenged in court?

Yes, but only in limited circumstances—such as lack of disclosure, duress, or unconscionability. The more work that goes into financial disclosure and fair negotiation of an agreement when it is created, the better the chance that it will be upheld in the event of a court challenge.

Can we update the agreement later?

Yes. Agreements can be amended or replaced by mutual consent.