If a family law case has been started in a court that you believe does not have the authority to hear it, you may be able to challenge jurisdiction. This is a procedural step that asks the court to either dismiss the case, transfer it, or stay it in favour of a more appropriate forum.

Jurisdiction challenges are time-sensitive and highly technical, so they need to be raised early and properly.

When Might You Challenge Jurisdiction?

A jurisdiction challenge may arise where:

  • The case was started in the wrong province or country
  • The child does not live in the jurisdiction where the case was filed
  • There is an existing proceeding in another court
  • There is a stronger connection to another jurisdiction
  • The court does not have authority over the type of claim being made

In family law, this most commonly comes up in parenting disputes where parents live in different provinces or where one parent has relocated with a child.

Types of Jurisdiction Challenges in Family Law

  1. Territorial Jurisdiction (Where the Case Should Be Heard)

This challenge argues that the court does not have a sufficient connection to the parties or the child.

Courts will typically look at factors such as:

  • Where the child is habitually resident
  • Where each parent lives
  • Where evidence and witnesses are located
  • Which jurisdiction has the closest overall connection to the family

If another province or country has a stronger connection, the court may decline to hear the case.

  1. Subject Matter Jurisdiction (What the Court Can Decide)

This challenge focuses on whether the court has authority over the legal issues being raised.

For example:

  • The Ontario Court of Justice cannot grant a divorce
  • Certain property claims must be brought in the Superior Court of Justice
  • Some claims may fall under federal legislation rather than provincial law

If the wrong court is chosen, the application may need to be moved or re-filed.

  1. Parallel or Competing Proceedings

Sometimes a case is started in more than one jurisdiction at the same time.

In those situations, a party may argue that:

  • The other court should take priority
  • The second proceeding should be stayed (paused or stopped)
  • One jurisdiction is forum shopping and not appropriate

Courts try to avoid conflicting orders and duplication of proceedings.

How to Bring a Jurisdiction Challenge

In Ontario family law matters, a jurisdiction challenge is usually brought by way of a motion.

Step 1: Bring a Motion Early

You should raise jurisdiction as soon as possible. If you participate in the case without objecting, you may be seen as accepting the court’s authority.

Step 2: File Evidence

You will typically need affidavit evidence addressing:

  • Where the child lives and has lived recently
  • Where each party resides
  • Any prior court proceedings
  • Relevant background facts showing connection to another jurisdiction

Step 3: Make Legal Submissions

Your legal argument will usually focus on:

  • “Real and substantial connection” to another jurisdiction
  • Habitual residence of the child
  • Statutory authority under Ontario and federal family law legislation

Step 4: Ask for a Remedy

The court may:

  • Dismiss the application
  • Stay the proceeding
  • Transfer the matter
  • Decline jurisdiction in favour of another court

Important Timing Issues

Timing matters significantly in jurisdiction disputes.

Courts may refuse to hear a jurisdiction challenge if:

  • You waited too long to raise it
  • You participated extensively in the case without objection
  • There is prejudice to the other party or the child due to delay

Early action is critical.

The Court’s Approach: Child-Centered Decision Making

Even in jurisdiction disputes, family courts prioritize the best interests of the child. This means courts will often consider:

  • Stability and continuity in the child’s life
  • The practicality of litigation in different locations
  • The risk of inconsistent or conflicting orders
  • The forum best positioned to make informed decisions

Conclusion

Challenging jurisdiction in a family law case is a formal legal process that must be raised early and supported with evidence. Courts will carefully assess where the case has the strongest connection and which forum is best suited to decide the issues.

If you are unsure about jurisdiction, getting legal advice early can prevent unnecessary litigation in the wrong court and help avoid procedural setbacks.

The content on this post is for information purposes only and is not legal advice, which cannot be given without knowing the facts of a specific situation. You should never disregard professional legal advice or delay in seeking legal advice because of something you have read on this website. The use of the website does not establish a solicitor and client relationship.