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Collaborative Divorce in Ontario: How the Process Works

Learn how collaborative divorce works in Ontario, who is involved, what the agreements require, and what happens if the process breaks down.

Family Law4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • The Divorce Act names collaborative law as one kind of family dispute resolution process that happens outside court.
  • In collaborative law, both lawyers sign a disqualification agreement and must withdraw if the matter goes to court.
  • Even when you settle collaboratively, a court still has to grant the divorce, and you can apply jointly.

If you and your spouse want to end your marriage without a courtroom fight, collaborative divorce may have come up. It is a way of working out the issues in meetings, with each of you supported by your own lawyer, rather than by arguing in front of a judge.

It can suit couples who can still talk and are willing to share information openly. It is not right for every situation, and it helps to know how it works and how it can fail before you commit to it.

What collaborative divorce means

Collaborative law is a process outside court where you and your spouse, with your lawyers, try to reach an agreement on the issues from your separation. The Divorce Act defines a family dispute resolution process as a process outside court, and it lists negotiation, mediation and collaborative law as examples.

That matters because parties to a Divorce Act proceeding must try to resolve the matters through a family dispute resolution process where appropriate. A lawyer acting for a spouse in a divorce must also discuss the possibility of reconciliation and encourage the client to try such a process, unless the circumstances clearly make that inappropriate. So you are likely to hear about options like this early on, whichever route you choose.

Who is involved and what you sign

At its core, collaborative law involves the two spouses and one lawyer for each. Some teams add other professionals, and the approach is described as a team approach.

Two commitments set it apart from ordinary negotiation:

The disqualification agreement is the feature people most often overlook. It gives everyone a reason to work toward settlement, but it also has a cost if talks fail, as discussed below.

How the process usually runs

The details vary from team to team, but the general shape is similar. You sign the agreements, share your financial information openly, identify the issues that matter to each of you, and meet together to work through options. The aim is a written settlement that you both accept.

If you reach agreement, it is usually recorded in a separation agreement. A separation agreement is a domestic contract that is unenforceable unless it is made in writing, signed by the parties and witnessed. It may cover property, support and parenting.

Settling outside court does not mean you never touch the court. A divorce is still granted by a court order. Either spouse may start a divorce case, or the spouses can file a joint application with no respondent. In a joint application, the divorce and any other order can be made only with the consent of both spouses. Before granting a divorce, the court must also be satisfied that reasonable arrangements have been made for the support of any children of the marriage.

When collaborative divorce does not work

The process can break down if one person stops sharing information, if talks reach a deadlock, or if one spouse decides they want a court decision. Because of the disqualification agreement, both lawyers must withdraw if the matter goes to court. You would then need to hire new lawyers and, in many cases, repeat some of the work. That is the main risk to weigh before you start.

Collaborative law may also be a poor fit where there is fear, pressure or a serious imbalance of power between you. Whether it is appropriate depends on your facts, and a lawyer can help you assess that.

Even a settled agreement can be challenged later in some situations. A court may set aside a domestic contract, or a provision in it, if a party failed to disclose significant assets, debts or other liabilities, did not understand its nature or consequences, or on contract-law grounds. Full and honest disclosure is therefore not only a promise in the process; it protects the agreement itself.

What to do next

Frequently asked questions

Is collaborative divorce the same as mediation?

No. Mediation uses a neutral third person to help you reach agreement, while collaborative law has each spouse supported by a lawyer under a disqualification agreement. The Divorce Act names both as family dispute resolution processes.

What happens if we cannot agree and want to go to court?

Both collaborative lawyers must withdraw if the matter goes to court. You would need new lawyers, so it is worth understanding this before you begin.

Do we still need a judge to get divorced?

Yes. A divorce is granted by the court, although the spouses can file a joint application. The court must be satisfied that reasonable arrangements have been made for any children's support.

Does a collaborative settlement have to be in writing?

A separation agreement is unenforceable unless it is made in writing, signed by the parties and witnessed. It may cover property, support and parenting.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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