When to Use the LTB for Roommate Disputes in Ontario

If you share a rental with roommates in Ontario and a conflict affects rent, safety or your right to quiet enjoyment, you may wonder whether the Landlord and Tenant Board (LTB) can help. This article explains when roommate issues fall within the LTB's jurisdiction, what evidence and official forms are commonly used, and practical steps tenants can take before filing an application. It uses plain language aimed at renters and includes timeframes, examples and links to official resources so you can decide whether to try mediation, speak with your landlord, or file with the Board.

When the LTB can (and can’t) help

The LTB handles disputes that relate to tenancy rights under the Residential Tenancies Act, 2006. If a roommate's behaviour causes rent arrears, serious damage, illegal activity, or repeated disturbances that affect your tenancy, the LTB may have jurisdiction. Private disputes that do not affect tenancy rights—such as splitting household bills between roommates or who buys groceries—are usually not matters for the Board and are best handled through direct negotiation or small claims court for money owing.

Practical steps before filing with the LTB

Start with low-cost actions that often resolve roommate problems without legal filings. Communicate clearly, keep written records, and involve the landlord when the issue affects the rental unit or other tenants.

• Talk to your roommate in writing and set clear expectations and deadlines.
• Document unpaid rent or shared-bill arrears with receipts, bank records, and dated messages.
• Report required repairs or safety hazards to the landlord in writing and keep copies.
• Record incidents that threaten safety, illegal activity, or harassment; consider contacting local police if there is immediate danger.

How and when to involve your landlord

If a roommate’s conduct interferes with your tenancy (for example, unpaid rent that the landlord expects, damage, or tenant-to-tenant harassment), notify the landlord in writing and ask them to address the issue. The landlord may issue warnings, serve notices, or apply to the LTB. Review your lease and the landlord’s responsibilities in What Tenants Need to Know After Signing the Rental Agreement before escalating.

Official forms you may use

• Form L1 — Application to evict a tenant for non‑payment of rent: use this when unpaid rent or arrears are owed to the landlord and the landlord seeks termination and an order for unpaid rent. Example: a roommate consistently fails to pay their share and the landlord is owed the full rent.
• Form L2 — Application about tenant responsibilities or other causes for eviction: use this when the landlord seeks termination for reasons other than non‑payment, such as persistent disturbances or damage. Example: repeated late‑night parties that breach the lease.
• Form L7 — Application to evict a person who is not a tenant or to seek orders about occupants: use this if a non‑tenant occupant is illegally staying or causing serious problems. Example: a former roommate who refuses to leave after notice is given.

Find these and other LTB forms on the Board's forms page when you are ready to apply.^[1]

Filing an application and what to expect

If informal resolution fails, the landlord or an eligible tenant may file an application with the LTB. Applications lead to a case number, a written exchange of evidence, and a hearing where both sides present facts. The Board can order repayment, repairs, or eviction depending on the outcome and the evidence provided. If you decide to file, include clear records: dates, photos, messages, receipts and witness names.

Working with evidence

• Keep dated photos, videos, and written logs of incidents and payments as proof.
• Save copies of all notices, messages, and requests to the landlord or roommate.
• Collect witness contact details and short written statements where possible.

FAQ

Can I ask the LTB to settle a money dispute between roommates?

If the dispute is only between roommates and does not affect tenancy rights (for example, splitting groceries), the LTB usually will not hear the case; small claims court or mediation may be more appropriate.

What if my roommate is not paying their share of rent and the landlord demands payment?

The landlord can apply to the LTB for unpaid rent (Form L1); keep copies of your communications and payments to show your contribution and any attempts to resolve the issue.

Can I file to remove a non‑tenant occupant who won’t leave?

Yes, if someone is occupying the unit without legal right or is causing serious problems, the landlord can use Form L7 to ask the LTB to order their removal.

How-To

1. Talk to your roommate calmly and put your agreement or concerns in writing with dates.
2. Collect evidence: photos, receipts, logs of incidents and copies of messages.
3. Notify the landlord in writing and request action, keeping a copy for your records.
4. If necessary, file the appropriate LTB form (such as L1, L2 or L7) and submit your evidence.^[1]
5. Attend the hearing, bring originals of documents and any witnesses, and follow the Board’s directions.

Key Takeaways

• Not all roommate disputes belong at the LTB; focus on tenancy‑related harms like unpaid rent or safety issues.
• Document everything and keep copies of communications and receipts to support your case.
• Use the correct LTB form for the situation and review official guidance before filing.^[1]

Help and Support / Resources

• Landlord and Tenant Board (Tribunals Ontario) — official information and links to forms
• Residential Tenancies Act, 2006 — full legislation (Government of Ontario)
• Renters' rights — practical guidance from Ontario government

1. [1] Landlord and Tenant Board forms and resources (Tribunals Ontario)
2. [2] Landlord and Tenant Board main page (Tribunals Ontario)
3. [3] Residential Tenancies Act, 2006 (Government of Ontario e-Laws)