Landlord and
Tenant Lawyer
Toronto.

What this page covers, and what it does not

Landlord and tenant disputes in Ontario run through two very different systems. Residential tenancies go to the Landlord and Tenant Board under the Residential Tenancies Act. Commercial tenancies do not touch the Board at all: they run on the lease itself, the Commercial Tenancies Act, and the courts.

Jonathan Kleiman works on the second of those. Commercial lease review, negotiation and enforcement, lease disputes for commercial landlords and tenants, demand letters, and money claims in Small Claims Court and the Ontario Superior Court, including post-tenancy claims that properly belong in court. Residential Board work is referred out, and the rest of this page explains how the residential process runs so you know what you are dealing with before you call anyone.

Residential tenancy disputes: how the process actually runs

Residential tenancies in Ontario are governed by the Residential Tenancies Act, 2006 (RTA). The Act sets out the rights and obligations of both landlords and tenants, and almost every dispute arising from an active residential tenancy is decided by the Landlord and Tenant Board. The sections below explain how each of the common ones works. None of it is work Jonathan takes on, and the referrals above are where to go with it.

Non-payment of rent and rent arrears

When a tenant stops paying rent, the landlord has to follow a specific sequence: serve an N4 notice, wait out the notice period, and file an L1 application with the Board if the tenant does not pay. On the tenant side, the questions are whether the landlord followed the correct procedure and whether there are defences available, including maintenance set-offs and improper notice. Either way, it is a Board file.

Eviction notices and termination notices

Ontario law requires landlords to use specific notice forms depending on the reason for termination: N4 for non-payment, N5 for interference or damage, N12 for personal use, N13 for demolition or conversion. Each form has its own notice period and procedural requirements, and serving the wrong form or miscounting the period can invalidate the whole eviction. Only the Board can order a residential eviction. No court can do it, and neither can a lawyer who does not practise there.

Tenant rights

Tenants in Ontario have substantial protections under the RTA. You cannot be evicted without a Board order. You are entitled to a unit in a good state of repair. Rent increases are capped by provincial guidelines in most cases. If a landlord is harassing you, entering illegally, withholding services, or refusing repairs, the remedy is an application to the Board, which can order rent abatements, compliance orders, and administrative fines. Take that to one of the paralegals named above.

Landlord rights

Landlords are entitled to collect rent on time, set reasonable rules for the property, pursue eviction where the Act allows it, and recover damage caused by tenants. Where the tenancy is residential, all of that runs through the Board. Proper documentation and correct procedure matter more than anything else: a well-prepared file resolves faster and costs less, and a badly served notice can cost six months.

Repairs, maintenance, and habitability disputes

Landlords are required by law to keep rental units in a good state of repair and to comply with health, safety, and housing standards. Where a landlord does not address maintenance issues such as plumbing, heating, pests, or structural problems, the tenant's route is a T6 application to the Board, which can order the repairs done and award a rent abatement for the period the unit was in disrepair. Again, Board work.

Property damage claims

When a tenant causes damage beyond normal wear and tear, the landlord's claim goes to the Board during the tenancy and for up to one year after the tenant moves out, and to Small Claims Court only where the claim genuinely falls outside the Board's jurisdiction. Treat that one-year window as a hard deadline. Tenants, for their part, can pursue a landlord in court for damage to personal belongings caused by negligence. Court claims of that kind are work Jonathan does. The Board applications are not.

Landlord and Tenant Board (LTB) applications

The LTB is the tribunal that decides residential tenancy disputes in Ontario. Applications cover evictions, rent arrears, maintenance, illegal charges, bad faith notices, and above-guideline rent increases. The process involves specific forms, filing deadlines, service requirements, disclosure rules, and hearing procedures. In practice, a Board file involves:

• Drafting and serving the correct notice (N4, N5, N7, N12, N13)
• Preparing and filing the right application (L1, L2, L9, T2, T6)
• Organizing evidence: leases, payment records, photographs, communications
• Appearing at the hearing, which is where most of the outcome is decided
• Negotiating at Board mediation or a case management hearing
• Enforcing the resulting order

That is the work Jonathan refers out. Merve Ozdemir at Unity Legal, (437) 339-8550, and Angela Makris at Arkhon, 416.845.8065, both practise at the Board.

A clean lease, served correctly, with a paper trail of documented communications, wins most landlord-tenant disputes before they ever reach a hearing.

Commercial lease disputes

Commercial leases are not governed by the Residential Tenancies Act. There is no LTB for commercial tenants — disputes are resolved through negotiation, mediation, or the courts. Commercial lease issues tend to involve higher stakes and more complex contractual terms including personal guarantees, assignment and subletting restrictions, operating cost pass-throughs, and demolition clauses. Jonathan also advises on dedicated commercial lease review and enforcement.

Jonathan represents commercial landlords and tenants in:

• Lease review, negotiation, and drafting
• Breach of lease claims and enforcement
• Rent arrears and rent recovery
• Commercial evictions
• Assignment and subletting disputes
• Disputes over operating costs and common area maintenance charges

Commercial lease disputes under $50,000 are handled in Small Claims Court. Disputes above that threshold proceed to the Ontario Superior Court. Jonathan handles both.

Lease review and lease enforcement

A well-drafted lease prevents disputes. A poorly drafted one creates them. Reviewing a lease before signing is document work, not Board work, and it is work Jonathan does: reading the lease, flagging the terms that create liability, ambiguity, or enforcement problems later, and saying plainly what they mean. Where a lease has already been signed and a party is not complying, enforcement runs through demand letters, negotiation, and, where it has to, litigation. What stays out of scope is acting on a residential tenancy dispute once it has become a Board matter.

Common lease issues include unclear maintenance responsibilities, improper rent increase provisions, ambiguous termination clauses, and missing provisions for security deposits. If you need a lease reviewed or a contract dispute resolved, Jonathan can help.

Rent recovery and rent arrears

For landlords, recovering unpaid rent is usually the most urgent issue, and the first question is which system the claim belongs to. Residential arrears run through the Board on L1 and L9 applications, including against a former tenant within a year of move-out, and those are referred out. Commercial arrears, and claims that genuinely fall outside the Board's jurisdiction, run through demand letters and the courts. That second route is where Jonathan works: a demand letter designed to prompt payment before litigation, then Small Claims or Superior Court if it does not.

Mediation, negotiation, and settlement

Not every lease dispute needs to go to trial. Many resolve through direct negotiation or structured settlement discussions, and on a commercial file the leverage is usually in the lease and the numbers rather than in the courtroom. Jonathan approaches every file with resolution in mind, keeping legal costs proportional to the amount at stake, and prepares the case for trial when settlement is not realistic. Where a private process suits better, he also advises on mediation and arbitration strategy.

Small Claims Court and Superior Court issues

Some landlord and tenant disputes fall outside the Board's jurisdiction entirely. Commercial lease disputes, negligence claims for damage to personal belongings, claims above the Board's monetary limit, and certain claims once a tenancy has ended belong in Small Claims Court (up to $50,000) or the Ontario Superior Court. This is the side of landlord and tenant work Jonathan handles, and the first thing worth getting right is the forum: a claim in the wrong building gets dismissed on jurisdiction before anyone looks at the merits.

Why hire a lawyer for a commercial lease or court claim

The procedural rules in court are technical and unforgiving, and so is a commercial lease. A default notice served under the wrong clause can cost a landlord its remedy. A tenant who misses a cure period can lose the premises. A dispute argued in the wrong forum can be dismissed on jurisdiction alone. On the matters Jonathan takes, that means:

• The right demand letter or notice drafted for your specific lease
• Claims filed in the right venue, Small Claims or Superior Court, and framed correctly
• Evidence organized properly: invoices, ledgers, photographs, communications, the lease itself
• Advocacy at settlement conferences and trial
• Enforcement of a judgment when the other side does not pay
• A straight answer about whether your matter is even in the right building, before you spend on it

Related practice areas

• Commercial Lease Lawyer Toronto — review, negotiation, and enforcement
• Small Claims Court Lawyer Toronto — civil disputes up to $50,000
• Contract Lawyer Toronto — lease agreements and breach of contract
• Business Lawyer Toronto — commercial disputes and corporate matters
• Contract Disputes — enforcement and breach claims