Roommate Abandonment in Ontario: Tenant Rights and Next Steps

If you’re renting with a roommate in Ontario and one suddenly abandons the unit, you may be left feeling confused and anxious about your rights and responsibilities. Understanding how the law treats abandoned tenancies can help you navigate financial, legal, and practical issues, ensuring you’re protected under Ontario’s Residential Tenancies Act, 2006.

Understanding Roommate Abandonment in Ontario

Roommate abandonment means a co-tenant or occupant has left the rental unit without proper notice, and does not intend to return or meet rental obligations. This situation raises important questions for the tenant(s) remaining in the unit.

  • Are you legally responsible for all the rent?
  • How should you handle the landlord and notify authorities?
  • What official steps should you take to protect your interests?

Your Obligations When a Roommate Leaves

Ontario law treats your responsibilities differently depending on the household arrangement and lease agreement:

  • Joint Tenancy (all tenants named on the lease): All listed tenants are collectively responsible for the full rent. If your roommate disappears, the remaining tenants remain liable for unpaid rent.
  • Individual Lease: Each tenant is only responsible for their own rent. If your roommate abandons, you are not responsible for their share, but your landlord may seek a new tenant.
  • Unofficial arrangements: If your roommate isn’t on the lease (sublets or verbal agreements), the legal picture can be more complex. You may need to clarify your status with the landlord.

For a basic overview of tenant responsibilities after lease signing, see What Tenants Need to Know After Signing the Rental Agreement.

What to Do If Your Roommate Abandons the Unit

Follow these practical steps to protect yourself and remain compliant with Ontario’s rules:

  • Contact your landlord immediately. Let your landlord know your roommate has left, and clarify your intentions (e.g., remaining, leaving, or finding a new roommate).
  • Document everything. Keep written communication with your landlord and try to get any agreements in writing.
  • Continue paying rent. If you’re on a joint lease, make every effort to ensure full rent is paid to avoid legal action or eviction.
  • Attempt to recover your former roommate’s share (if applicable). Although you may be responsible for the full rent, you can try to contact your former roommate for reimbursement.
  • Consider applying to the Landlord and Tenant Board for disputes.

For more guidance, review Common Issues Tenants Face and How to Resolve Them.

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Official Forms: What Tenants Might Need

  • N9: Tenant's Notice to End the Tenancy – If you decide you cannot afford the unit alone, use the N9 form to give your landlord proper notice (typically at least 60 days). Even if your roommate has left, you must provide this notice if you wish to end your tenancy.
    Example: Your roommate abandons the unit, and you can’t keep up with the rent. File the N9 as soon as possible to minimize your liability.
  • L2: Application to End a Tenancy and Evict a Tenant – While this is mainly for landlords, tenants should be aware their landlord may use this form if full rent is not paid after an abandonment. See official info at the LTB Forms page.
  • Tenant Application for a Rebate (T1) – If you paid more than your share of rent due to your roommate’s abandonment and your landlord collected extra, you may apply for a rent rebate. Learn more via the LTB T1 Application.

All forms should be filed with the Landlord and Tenant Board (LTB), which is Ontario's official housing dispute tribunal.

Relevant Legislation and Where to Get Help

Ontario tenants are governed by the Residential Tenancies Act, 2006. This legislation covers rent payments, end of leases, notice periods, and tenant/landlord obligations.

If you face financial hardship after a roommate abandons the unit, speak to your landlord early and explore subletting or assignment options with permission. Open communication can help you avoid costly disputes.

For an overview of your legal obligations and rights in this province, review Tenant Rights in Ontario.

Finding a New Roommate or Moving Out

You may wish to replace your roommate or move out entirely. In most cases, you must have your landlord’s written consent to add a new roommate or assign your lease. Leaving before your lease ends may involve giving proper notice. Review What to Do If You Need to Leave Your Rental Before the Lease Expires for tips on how to end your lease correctly and limit potential costs.

If you’re searching for new accommodations, Browse apartments for rent in Canada using Houseme's helpful tools.

FAQ: Roommate Abandonment in Ontario

  1. If my roommate abandons the unit, am I responsible for their share of the rent?
    In most cases, if you signed a joint lease, you are collectively responsible for the entire rent. Individual lease arrangements may be different.
  2. What should I do immediately if my roommate leaves without warning?
    Notify your landlord in writing right away, document all communication, and continue paying your share of the rent.
  3. Can I easily find a new roommate or transfer the lease?
    Not without the landlord’s written approval. Always consult your landlord and get any agreement about new occupants in writing.
  4. Is there a government body in Ontario that helps with these situations?
    Yes. The Landlord and Tenant Board handles tenant-landlord disputes and provides official forms and guidance.
  5. Do I have to provide written notice if I want to move out after roommate abandonment?
    Yes. Use the N9 form and give at least 60 days’ notice before leaving to protect yourself from liability.

Conclusion: Key Takeaways for Ontario Tenants

  • Joint tenants remain responsible for full rent payments even if a roommate leaves unexpectedly.
  • Act quickly: notify your landlord, keep records, and use proper notice forms to protect your rights.
  • Ontario's Residential Tenancies Act, 2006 and the LTB offer clear guidance and dispute resolution for most situations.

Need Help? Resources for Tenants


  1. Residential Tenancies Act, 2006, S.O. 2006, c. 17. View full legislation
  2. Landlord and Tenant Board. Official website
  3. Ontario Ministry of Municipal Affairs and Housing. Renting in Ontario: Your Rights
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Canada

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for renters everywhere.