Regardless of the number of rental properties you own, being a landlord comes with incredible income and portfolio-building potential. However, entering into a residential lease means entering a strict legal framework. While property owners are protected by provincial laws, tenants have robust rights designed to shield them from unreasonable landlord actions.
In Ontario, residential tenancy disputes and claims are handled primarily through the Landlord and Tenant Board (LTB) rather than standard civil court. Crossing legal boundaries can result in severe financial penalties, rent abatements, or official legal claims. Moving beyond the obvious, let’s explore the critical reasons why tenants can legally take action against a landlord—and how you can avoid them.
1. Inhabitable Property & Unresolved Maintenance (e.g., Mold and Infestations)
Under Section 20 of Ontario’s Residential Tenancies Act (RTA), landlords are legally obligated to maintain rental units in a good state of repair and fit for habitation. If a property poses health or safety risks, tenants have clear grounds to file a formal maintenance application through the LTB using a Form T6: Tenant Application about Maintenance.
Common violations include severe pest infestations, plumbing failures, unheated units, or chronic water leaks leading to toxic mold. If you ignore maintenance requests or fail to adhere to legal repair timelines, tenants can seek heavy financial compensation. To understand your exact responsibilities and timeline expectations, read our guides on how long landlords have to fix problems in Ontario and mold legal obligations and best practices in Ontario rentals.
2. Invasion of Privacy and Illegal Entry
Ownership of a property does not give you the right to enter an occupied home whenever you please. Ontario tenancy laws dictate strict rules regarding privacy:
- You must provide at least 24 hours’ written notice before entering a unit.
- The notice must specify a valid reason (e.g., inspection or repairs) and a reasonable window of time (between 8:00 a.m. and 8:00 p.m.).
Showing up unannounced, entering without proper notice, or harassing tenants violates their right to “reasonable enjoyment.” Tenants can hold landlords accountable by submitting an LTB T2 Application (Application about Tenant Rights), which can result in significant fines and tenant compensation orders.
3. Failure to Reimburse Tenants for Emergency Repairs
There are times when a vital repair (such as a burst pipe or broken heating system in winter) occurs outside business hours, and an unresponsive landlord forces the tenant to act. If a tenant pays out-of-pocket for urgent, necessary repairs because you failed to act, you are legally required to reimburse them.
Ignoring or refusing to pay back a tenant for legitimate emergency repairs can lead to LTB claims where landlords are ordered to pay back costs plus administrative penalties. You can review all required documentation in our complete directory to LTB forms.
4. Bad Faith Evictions & Misuse of N12 / N13 Notices
One of the most litigated areas at the LTB involves ending a tenancy for “personal use” (Form N12) or major renovations/demolition (Form N13). If you serve a notice to end a tenancy claiming that you, a purchaser, or a family member is moving in—or that major structural work is required—you must genuinely intend to follow through.
If a tenant discovers you re-rented the unit at a higher market rate shortly after eviction, they can file a Form T5 (Tenant Application – Bad Faith Notice). LTB penalties for bad faith are severe, forcing landlords to pay moving expenses, rent differentials for up to a full year, and administrative fines up to $50,000. For a complete overview of proper notice procedures, check out our guide on how much notice a landlord must give in Ontario and our complete guide to eviction notices (N-Forms).
5. Illegal Lockouts and Interference with Vital Services
Frustration with a tenant—even one who is severely behind on rent—never justifies self-help eviction tactics. Under Ontario law, it is strictly illegal to:
- Change the locks or lock a tenant out of their unit without an official Sheriff’s enforcement order.
- Cut off vital services such as electricity, water, gas, or heat.
- Forcefully remove a tenant’s belongings or throw their property out on the curb.
Engaging in any of these illegal maneuvers exposes a landlord to emergency LTB hearings, massive financial damage orders, and police intervention.
6. Retaliatory Evictions
If a tenant exercises their legal rights—such as calling municipal property standards (311) regarding an unaddressed health hazard or filing an LTB maintenance complaint—you cannot legally retaliate by serving an eviction notice or raising their rent punitively.
If an eviction notice closely follows a tenant’s formal complaint or request for repairs, the LTB will view it as a retaliatory eviction, dismiss the landlord’s eviction application outright, and penalize the property owner.
7. Personal Injury Caused by Property Negligence
Landlords have a legal duty of care to ensure that both individual units and common areas (stairs, walkways, parking lots) are safe. If a tenant or their guest is injured due to documented, ignored negligence, they may pursue civil claims or personal injury lawsuits against you.
Examples that trigger serious liability include:
- Unshovelled or icy common walkways leading to slip-and-fall injuries.
- Broken handrails on stairwells.
- Ignored structural leaks and mold resulting in severe respiratory illness.
- Faulty electrical fixtures or broken ceiling fans.
Conclusion
Coexisting successfully with your tenants requires a balanced approach rooted in professional management and strict adherence to the law. While property ownership grants you long-term financial freedom, ignoring tenant rights or cutting corners on maintenance opens the door to costly LTB hearings and lawsuits.
Navigating these complex regulations doesn’t have to be a solo job. Looking for a reliable Property Manager? Marda Management is a full-service property management company handling properties of all sizes across Windsor, Essex County, and Chatham-Kent. Let us handle compliance, maintenance, and tenant relations while you enjoy passive investment success. Contact us today to see how we can help!
