Disputes Between Roommates: LTB Options in Ontario

Roommate conflicts can affect your safety, finances and ability to stay in your rental. If you live in Ontario and informal steps don’t work, the Landlord and Tenant Board (LTB) can sometimes help resolve disputes between co-occupants when they relate to the tenancy or the rental unit. This guide explains practical steps tenants can take before filing, the official forms and timelines you may face, and what to expect at hearings so you can protect your rights and make informed decisions as a renter in Ontario.

What kinds of roommate disputes can the LTB handle?

The LTB deals with issues tied to the tenancy and rental unit rather than purely personal disputes. Examples include unpaid rent by a roommate, damage to the unit, illegal actions affecting habitability, or disagreements about who is named on the lease. If the landlord is involved or the tenancy agreement is at stake, you may bring certain matters to the LTB. See the Landlord and Tenant Board ^[1] for jurisdiction details.

Before you file: practical steps for tenants

• Keep clear records: photos, messages, receipts and a dated log of incidents or missed payments.
• Talk with your roommate and try mediation or a written agreement that clarifies rent shares and responsibilities.
• Serve written notices when required under your lease or the Residential Tenancies Act, 2006 to create a formal record of problems.^[2]
• Track deadlines: responses, hearing dates and any timelines listed on notices or board communications.

Official forms and how tenants use them

You will use LTB forms for complaints or applications. The main resources and downloadable forms are on the LTB forms page here.^[3]

• Application about Tenant Rights (Form T2) — used by tenants to ask the LTB to decide issues such as unauthorized charges, repairs not done, or other tenant-rights disputes; for example, a tenant files when a roommate repeatedly refuses to pay their agreed share and the landlord won’t enforce it.
• Application to End a Tenancy and Evict a Tenant (Form L1) — used by landlords to seek eviction; tenants may see this if a roommate’s behaviour prompts the landlord to begin eviction proceedings and the tenant needs to respond.
• Notice to End your Tenancy for Non-payment of Rent (Form N4) — a common landlord notice for rent arrears; tenants should review notices carefully and respond or apply to the LTB if they disagree.

Filing with the LTB and what to expect

1. Submit the correct application form online or by mail and pay the fee (or request a fee waiver if eligible).
2. Wait for a Notice of Hearing or telephone directions; keep your contact details current with the LTB.
3. Prepare and exchange evidence ahead of the hearing — photos, messages, receipts and witness statements.
4. Attend the hearing in person or by phone/virtual meeting; be concise and stick to facts relevant to the tenancy.
5. If the Board grants an order, follow the decision or apply to enforce it; if not, ask about next steps or rehearing rights.

What if a roommate won’t pay their share?

If your lease names you both, the landlord can hold either or both tenants responsible for rent; you may need to pursue the roommate for their share in small claims court after resolving the tenancy issue with the LTB. If only one tenant is on the lease, the landlord will pursue the named tenant for arrears and that tenant can seek reimbursement from the roommate separately. Talk to the LTB or a legal clinic about options tailored to your situation.

FAQ

Can the LTB settle disputes between roommates?

The LTB can decide disputes that relate to the tenancy or the rental unit, such as unpaid rent, damage, or breaches of the lease; it cannot decide purely personal disputes unrelated to the tenancy.

Do I need the landlord's permission to add a roommate?

Often a lease sets rules for adding occupants; landlords may require written notice or a new lease. Check your rental agreement and discuss options with the landlord to avoid breaching the lease.

What should I bring to an LTB hearing about a roommate?

Bring clear evidence: dated messages, receipts, photos, a timeline of events and any relevant sections of the lease to show how the issue affects the tenancy.

How-To

1. Gather documents that show the problem and your attempts to resolve it informally.
2. Identify and complete the correct LTB form for your issue and include copies of evidence.
3. File the application via the LTB website or mail, and keep proof of submission.
4. Prepare for timelines by noting hearing dates and exchange deadlines for evidence.
5. Attend the hearing, present facts calmly, and follow the Board’s directions after the decision.

Key Takeaways

• Document everything related to the dispute and keep dated records.
• Use the correct LTB form and meet filing or evidence deadlines.
• Seek informal resolution first and use official routes when necessary.

Help and Support / Resources

• Contact the Landlord and Tenant Board
• Residential Tenancies Act, 2006
• Ontario renters' rights and responsibilities

1. [1] Landlord and Tenant Board
2. [2] Residential Tenancies Act, 2006
3. [3] LTB forms and instructions

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