How Do I Handle Tenant Complaints and Disputes? 2026 Ontario Guide

Handling tenant complaints and disputes in Ontario in 2026 — landlord guide

TL;DR — Key Points

  • Take every complaint seriously and in writing: log the date, time, who reported it, and exactly what happened. A landlord who ignores a credible complaint about another tenant can end up facing that tenant’s own application to the Board.
  • Investigate before you blame: speak to both sides separately, inspect on at least 24 hours’ written notice, and check whether the cause is actually yours to fix — a building system, a repair, or a condo rule.
  • Fix what is yours first. Your duty to keep the unit in good repair does not pause because a dispute is running, and most maintenance complaints end when the repair is done and dated.
  • Warn in writing before you file anything: name the behaviour, the dates, the impact, what must change, and the next step. A clear warning solves most conduct complaints and becomes your evidence if it does not.
  • If conduct continues, use the right form: N5 for interference, damage or overcrowding (first notice: 20 days, 7 days to correct or it is void; second within six months: 14 days, no cure), N7 for serious safety or wilful damage (10 days), N6 for an illegal act (10 or 20 days). Then Form L2 — $186 online, $201 on paper — within 30 days after the termination date.
  • Never use self-help and never retaliate: no lock changes, shut-offs, or threats, and a tenant complaining or filing at the Board is not a reason to end a tenancy. Only a Board order enforced by the Sheriff can force anyone out.

Table of Contents

Complaints are not interruptions to landlording — in Ontario they are a legal process with your name on it. Handle one badly and a noise complaint between two tenants becomes an application against you; handle it well and most disputes end with a conversation, a repair, or one clear letter. This guide works through the order that keeps you on the right side of the Residential Tenancies Act (RTA): log it, investigate it, fix what is yours, warn in writing, and use the Landlord and Tenant Board (LTB) forms only when the earlier steps fail.

Step 1: Log the complaint the day it arrives

Ask for the complaint in writing — email is fine — and start a file for the unit. Record:

  • Who is complaining, about whom, and the unit numbers involved
  • Dates and times of each incident, not just “it happens every night”
  • What was heard, seen, damaged or done, in the complainant’s own words
  • Any photos, recordings, building incident reports or 311 reference numbers
  • What you did next, and when — your response is part of the record too

Acknowledge the complaint the same day, even if the reply is only “received, here is what I will do next, and by when.” Silence is what turns a complainant into an applicant: a tenant whose reasonable enjoyment is being substantially interfered with, and who can show the landlord did nothing, has their own route to the Board. Keep the file factual and neutral — at a hearing, this log is evidence, and opinions or name-calling in it help the other side.

The complaints landlords actually get

  • Noise and behaviour between tenants: music, parties, barking, hallway and balcony conduct, smoking drift. The legal test is not “annoying” — it is substantial interference with reasonable enjoyment. In Toronto, unreasonable and persistent noise can also be a bylaw matter through 311, and the City expects people to try the landlord or condo route first.
  • Maintenance and repairs: heat, water, appliances, leaks, pests, mould. These are usually about your repair duty, not the tenant’s behaviour — see Step 3.
  • Damage, guests and overcrowding: undue damage to the unit or common areas, occupants well beyond what health, safety or housing standards allow, or guests who effectively move in.
  • Rent and money: disputes about what is owed, a rent increase, or a charge the tenant says is illegal. These are arithmetic and paperwork problems first — show the ledger before arguing about it.
  • Entry, privacy and services: complaints that you entered without proper notice, cut a service, or harassed the tenant. Treat these as high-risk: they go directly to a tenant’s Board application.
  • Safety: threats, violence, serious property damage, illegal activity. Skip the slow steps — see Step 6 for the faster forms, and involve police first where anyone is at risk.

Step 2: Investigate before you take a side

You are the record-keeper, not the judge — but the Board will later ask what a reasonable landlord did. A fair investigation looks like this:

  • Hear both sides separately. Give the tenant complained about a real chance to respond before you conclude anything. One-sided files collapse at hearings.
  • Inspect lawfully. To look at the unit’s condition, serve at least 24 hours’ written notice stating the reason, the day, and a time between 8 a.m. and 8 p.m. Emergencies — fire, flood, a burst pipe — are the only no-notice exception.
  • Check the building causes first. A “noisy neighbour” is sometimes a failing fan coil, a door closer, or pipes. In a condo, pull in building management early: the corporation’s rules and its own enforcement may solve what you cannot.
  • Consider accommodation. If the behaviour behind a complaint may be linked to a disability or another ground protected by the Human Rights Code, ask what accommodation is possible before you escalate. The duty is to accommodate up to undue hardship — a step the Board expects to see in the file.
  • Write down the finding. One short paragraph: what you checked, what you found, what happens next. Send it to both sides where it is safe to do so.

For the repair side of an investigation, see how to handle maintenance and repairs.

Step 3: Fix what is yours to fix

A large share of “tenant disputes” are really the landlord’s own list coming back. Your duty is to keep the unit in good repair and fit for habitation, and it applies even while another dispute is running. So:

  • Date every repair commitment and keep it — a missed date becomes the story at the hearing
  • Use licensed trades where the work requires them, and keep invoices in the complaint file
  • If the fix needs entry, give the 24-hour written notice rather than “swinging by”
  • Tell the complainant when the work is done — closing the loop ends most maintenance complaints

Do not hold a repair hostage to good behaviour, and do not accept a tenant withholding rent as a repair strategy either: in Ontario the remedy for an unmade repair is the Board process in the “When the complaint is about you” section below, not self-help on either side.

Step 4: Talk it out — and mediate early

Most conduct complaints are solved by one direct, calm conversation once the facts are checked: many tenants genuinely do not know how far sound carries, that a guest has overstayed, or that a balcony habit affects the unit below. Keep it specific and short — the behaviour, the dates, the impact, the change you need.

If direct talk stalls, mediation is the cheap middle step. The Board can offer mediation on many applications, and a mediated settlement can be turned into an enforceable Board order. In Toronto, free community mediation is also offered for neighbour and noise disputes before bylaw enforcement. Either route is faster and cheaper than a hearing — and a tenant who refuses a reasonable mediated solution has not helped their own case if the file reaches the Board later.

Step 5: Warn in writing, with specifics

If the behaviour continues, send a written warning before any Board form. A warning that works contains:

  • The specific conduct, with dates and times from your log — not a general complaint about attitude
  • The impact: which tenant’s enjoyment is affected, what damage was done, or which standard is breached
  • Exactly what must stop or be fixed, and by when
  • The next step if it continues: a formal notice of termination under the RTA
  • An invitation to reply or meet — the door stays open, in writing

Keep the tone flat and factual. Threats you cannot lawfully carry out (“be out by Friday,” “the locks change Monday”) are worse than no warning: they are evidence of interference and can found the tenant’s own application. One clear warning is usually enough; two warnings with no follow-through teach everyone that warnings mean nothing.

Step 6: Use the right Board form — N5, N6 or N7

When a warning fails, the notice must match the conduct. Serving the wrong form, or a stale version of the right one, can end the application before it starts — the Board replaced the main forms on September 21, 2026, and old versions will not be accepted after November 30, 2026, so always download fresh from Tribunals Ontario.

  • Form N5 — interference, damage or overcrowding. The workhorse for noise and behaviour complaints, negligent damage, and too many occupants. A first N5 sets a termination date at least 20 days out, and the tenant has 7 days to stop the conduct, repair or pay for the damage, or reduce the occupants — if they do, the notice is void. A second N5 within six months sets a termination date at least 14 days out and cannot be voided.
  • Form N7 — serious problems. For conduct that seriously impairs someone’s safety, wilful undue damage, or using the unit in a way inconsistent with residential use that causes serious damage. Termination date at least 10 days out, and there is no cure window.
  • Form N6 — illegal act. For an illegal act in the unit or complex (and for misrepresented income in rent-geared-to-income housing). No cure window: termination date at least 10 days out for drug production or trafficking, at least 20 days for other illegal acts.

On every form, the details section is where cases are won: list each incident with its date, time and a plain description, exactly as in your log. Serve the notice by a permitted method — hand it to the tenant or an adult in the unit, leave it in the mailbox, put it under the door, or send it by courier or mail (adding the mailing days) — never by posting it on the door, keep a copy, and complete the Certificate of Service.

Step 7: File the L2 and prepare for the hearing

A notice does not evict anyone. If a first N5 is not cured within 7 days, or a second N5, N6 or N7 has been served, the next step is Form L2, Application to End a Tenancy and Evict a Tenant — filed no later than 30 days after the termination date on the notice. The filing fee is $186 through the Tribunals Ontario Portal or $201 by mail, courier or at ServiceOntario.

  • Build the evidence bundle early: the complaint log, both sides’ letters, your warning, the notice and Certificate of Service, photos, building reports, and any witnesses — especially the tenant who complained, whose evidence the Board needs to hear
  • Mind the evidence clocks: serve and file your evidence at least 7 days before the hearing, and responding evidence at least 5 days before
  • Expect the Board to look at the whole file: whether eviction is the right outcome, or should be refused or delayed, is decided on all the circumstances — your investigation, your warning, and any accommodation you offered are part of that picture
  • After the order: only the Court Enforcement Office (the Sheriff) can enforce an eviction order. And if you believe an order contains a serious error, the request to review it must now be filed within 15 days of the order — that deadline was halved on July 1, 2026, so do not sit on a bad order

The same discipline applies to money that survives a dispute: if a former tenant still owes arrears or damage costs after moving out, the route is Form L10, filed within one year of move-out — see what to do when a tenant moves out.

When the complaint is about you: T2 and T6

Complaints run both ways, and a landlord who understands the tenant’s forms handles complaints better. The two you will meet most:

  • Form T2 — tenant rights: interference with reasonable enjoyment, harassment, an illegal entry, a withheld or cut vital service, or a lock changed without a key. Tenants generally file within one year of the problem.
  • Form T6 — maintenance: a failure to keep the unit in good repair or to meet health, safety or housing standards, also generally within one year.

The filing fee for a tenant application is $53, or $48 through the portal, with fee waivers for eligible low-income applicants — so cost is no barrier, and you should assume a serious unresolved complaint will be filed. Your defence is the same file built in Steps 1–3: a dated log, a fair investigation, and repairs done when promised. Respond to the application, attend the hearing, and bring the file. Ignoring a T2 or T6 does not make it smaller.

Money complaints have their own clocks too. A guideline rent increase for a sitting tenant is 2.1% for 2026 (1.9% for 2027), on at least 90 days’ written notice and no more than once in 12 months for most rent-controlled units — an increase that ignores those rules is a complaint you will lose, so check the paperwork before defending it. The broader rent and lease rules are in how to write a lease agreement in Ontario and how to find good tenants.

What never to do in a dispute

  • No self-help: never change the locks, remove a door, shut off heat, water or power, or move a tenant’s belongings out. Only a Board order enforced by the Sheriff ends a tenancy against a tenant’s will.
  • No retaliation: serving a notice because a tenant complained, asked for a repair, or filed at the Board is not a lawful ground — and it converts your complaint file into theirs.
  • No illegal charges: no fines, penalties, damage charges deducted from the last month’s rent deposit, or “dispute fees.” The deposit pays the last period’s rent, nothing else.
  • No unannounced entry to “check on” a complaint — 24 hours’ written notice, 8 a.m. to 8 p.m., except a genuine emergency.
  • No taking it public: do not discuss one tenant’s complaint, file or personal circumstances with other tenants beyond what the investigation requires.

Short-term guests are different

Most of this guide is long-term tenancy law. A paying Airbnb-style guest is not an RTA tenant — stays under 28 consecutive nights in Toronto sit inside the short-term rental rules instead — so guest complaints are handled under your house rules, the platform’s processes, and, for real damage, its host-protection and resolution process rather than N-forms and the Board. The habits still transfer: log it, photograph it, write it down the same day. Where a “guest” has in fact become a long-term occupant, get advice before assuming either regime — the label on the booking does not decide it. See what a short-term rental is and our Toronto management page for the short-term side.

DIY or hire a manager?

A single complaint in a single unit is manageable yourself if you keep the log, stay neutral, and can meet the Board’s clocks. The case for a manager is volume and distance: several units, an out-of-town owner, or a file that has reached the N-form stage, where one miscounted date or a stale form version restarts the whole process. Typical 2026 bands are 8–12% of collected rent for long-term management and 18–25% for short-term management. See what a property management company does, how to screen prospective tenants — good screening prevents a share of these files — and the steps to renting out your property.

Frequently Asked Questions

A tenant complains about another tenant’s noise. What is my legal duty?

You must take reasonable steps: log the complaint, investigate it fairly, speak to both tenants, and act on what you find — up to a written warning and, if the conduct substantially interferes with the other tenant’s reasonable enjoyment and continues, a Form N5. Doing nothing is the risky option: the complaining tenant can apply to the Board about their own rights if you fail to act.

How long does a tenant have to fix the problem after a first N5?

Seven days. A first Form N5 sets a termination date at least 20 days after it is served, but if the tenant stops the conduct, repairs or pays for the damage, or reduces overcrowding within 7 days, the notice is void. A second N5 within six months is different: a termination date at least 14 days out, and it cannot be voided.

What is the difference between an N5, an N6 and an N7?

An N5 covers interference with others, negligent damage and overcrowding, and usually gives a 7-day chance to correct. An N6 covers an illegal act and has no correction window — at least 10 days for drug production or trafficking, 20 days otherwise. An N7 covers serious safety impairment or wilful damage, at least 10 days, also with no correction window.

How much does it cost to file an L2 application?

$186 through the Tribunals Ontario Portal, or $201 by mail, courier or at ServiceOntario. The L2 must be filed no later than 30 days after the termination date on the notice it is based on, with a copy of the notice and a Certificate of Service.

Can I change the locks or shut off services to pressure a tenant in a dispute?

No. That is self-help, and it is prohibited. A landlord cannot alter the locks without giving the tenant the new key, cut a vital service, or force a tenant out in any way other than a Landlord and Tenant Board order enforced by the Court Enforcement Office (the Sheriff). Doing so can ground the tenant’s own urgent application against you.

My tenant filed a T2 against me. What should I do?

Take it seriously and on time: read the application, respond through the Board process, and attend the hearing with your file — the complaint log, your investigation notes, repair records and every letter you sent. Most T2 outcomes turn on what the landlord actually did and can prove. And if you later believe an order contains a serious error, a request to review it must be filed within 15 days of the order.

Complaints piling up, or a file heading for the Board? Talk to Home Again about management — we run the log, the letters, the notices and the turnover for Toronto and GTA owners.