Guarantor Enforcement Cases in Ontario Tenancy

Legal Precedents & Case Summaries Ontario 4 min read · published June 24, 2026 Flag of Ontario

A guarantor promises to cover a tenant's rent or damages if the tenant cannot pay. In Ontario this promise can lead to enforcement actions against the guarantor when rent or repairs go unpaid. This article explains how enforcement typically works, the options available to tenants and guarantors, and the official forms and tribunals involved so renters know how to respond quickly and protect their rights. It uses plain language, practical examples, and step-by-step actions a tenant or guarantor can take when facing a claim or notice in Ontario.

How guarantor enforcement works in Ontario

When a tenant falls behind in rent or causes damage, a landlord may seek payment from a guarantor based on the guaranty agreement. That enforcement can happen at the Landlord and Tenant Board (for some tenancy disputes) or in Small Claims Court for monetary recovery. Whether the landlord proceeds at the Board or in court depends on the remedy sought, the wording of the guaranty, and procedural rules under the Residential Tenancies Act, 2006.[1]

Guarantors can be held responsible for unpaid rent and certain damages if the guaranty is valid.

Common enforcement paths

  • Landlord files a claim at the Landlord and Tenant Board to collect unpaid rent or request eviction-related remedies.
  • Landlord sues the guarantor in Small Claims Court for unpaid rent, damages, or unpaid arrears that exceed tribunal jurisdiction.
  • Landlord uses a collection agency or garnishment after obtaining a court judgment to recover amounts from a guarantor.

What tenants and guarantors should do immediately

If you are a tenant or guarantor served with a notice or claim, act quickly. Ignoring a notice can lead to default judgments or eviction orders. Start by collecting documents that prove payments, communications, and the condition of the unit at relevant times.

  • Gather rental payment records, bank transfers, receipts, and any messages about payments or repairs.
  • Note and meet any deadlines in notices so you do not lose the chance to respond or attend a hearing.
  • Contact the landlord or their agent to ask for clarity, propose payment arrangements, or confirm the exact claim amount.
  • Consider filing a response with the Landlord and Tenant Board or Small Claims Court if you dispute the claim or want a hearing.
Respond to legal notices within deadlines to avoid losing rights.
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Forms you may need and when to use them

Below are the most relevant official forms for guarantor or tenant responses in Ontario, with simple examples of when to use each.

  • LTB Form L1 — "Application to End a Tenancy and Evict a Tenant (Form L1)" (and related LTB forms): Landlords use L1 to seek eviction for non-payment of rent and to claim rent arrears. Example: if a landlord wants the Board to order payment of unpaid rent and eviction, they file L1 and supporting evidence with the Landlord and Tenant Board.[2]
  • Small Claims Plaintiff's Claim (Form 7A) — "Plaintiff's Claim" or equivalent: A landlord can start a money claim against a guarantor in Small Claims Court when seeking a monetary judgment for unpaid rent or damages. Example: a landlord who wants a judgment for six months' unpaid rent may file a Plaintiff's Claim in Small Claims Court and serve the guarantor.[3]
Detailed documentation increases your chances of success in disputes.

Disputes, hearings, and evidence

At a hearing, either at the Board or in court, evidence matters. Bring organized records of payments, correspondence, photos of unit condition, repair requests, and the signed lease and guaranty. If you are the guarantor asserting a defence (for example, the guaranty was limited or conditional), present the guaranty document and any proof the landlord accepted partial payments.

  • Prepare a timeline of events with dated receipts, messages, and photos.
  • Bring copies of the lease and guarantor agreement to show the scope of obligations.
  • Attend the hearing or court date and be prepared to explain your position clearly and calmly.

FAQ

Can a landlord sue a guarantor directly in Ontario?
Yes. A landlord can sue a guarantor in Small Claims Court for unpaid rent and damages, or may seek remedies through the Landlord and Tenant Board depending on the issue and remedy sought.
What defences can a guarantor raise?
A guarantor can argue the guaranty is invalid, limited, or that the landlord accepted partial payment, misled the guarantor, or failed to mitigate damages. Evidence and the guaranty wording are key.
Do tenants lose rights if a guarantor is sued?
No. Tenants retain tenancy rights under the Residential Tenancies Act, 2006, but unresolved arrears can still lead to eviction applications or monetary claims affecting both tenant and guarantor.

How-To

  1. Gather all documents: lease, guaranty, payment records, receipts, communications, and photos that support your position.
  2. Check the notice or claim for deadlines and filing dates, then calendar the next required steps so you meet response times.
  3. Decide whether to negotiate, file a response with the Landlord and Tenant Board, or defend a Small Claims action; use the appropriate official form.
  4. Attend the hearing or court date with organized evidence and, if possible, seek legal advice or tenant assistance ahead of the hearing.

Key Takeaways

  • Respond to notices and claims quickly to preserve your rights and avoid default judgments.
  • Keep clear records of payments and communications to defend against guarantor enforcement.
  • Use the correct official form when filing with the Landlord and Tenant Board or Small Claims Court.

Help and Support / Resources


  1. [1] Residential Tenancies Act, 2006 — e-Laws
  2. [2] Landlord and Tenant Board forms — Tribunals Ontario
  3. [3] Small Claims Court forms — Ontario Courts
  4. [4] Landlord and Tenant Board — Tribunals Ontario (home)

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Sarah Mitchell
Sarah Mitchell

Senior Housing Rights Researcher, Tenant Rights Canada

Sarah has spent over a decade researching tenant legislation across Western Canada, with a particular focus on British Columbia and Alberta. She holds a certificate in Housing Policy from Simon Fraser University and has contributed to several housing advocacy organizations.