How to Handle a Difficult Condo Owner in Ontario: What London and Sarnia Boards Should Do

What Does the Condominium Act Say About a Difficult or Disruptive Owner?

Under the Condominium Act, 1998, no owner is permitted to create a nuisance, and the corporation has a legal duty to make owners comply. Section 117 prohibits any activity likely to damage the property or cause injury or illness, and it also prohibits prescribed nuisances such as unreasonable noise, odour, smoke, vapour, light, or vibration. Section 17(3) requires the corporation to take all reasonable steps to ensure that owners, residents, and their guests obey the Act and the corporation's declaration, by-laws, and rules.

This is not legal advice, but generally speaking under Ontario law, a difficult owner is not simply a personality the board has to absorb. Once that owner's conduct crosses into a nuisance or a rule breach, addressing it is a compliance obligation the corporation is required to meet. Ignoring it can expose directors to criticism for failing in that duty, which is why a clear process matters.

Behaviour that commonly falls within Section 117 and the corporation's governing documents includes:

•       Persistent, unreasonable noise, odour, smoke, or vapour that disturbs other residents

•       Threats, intimidation, or harassment aimed at directors, staff, or the property manager

•       Repeated refusal to follow rules on parking, pets, short-term rentals, or common-element use

•       Conduct that endangers the safety of the building or the people in it

•       Non-payment of common expenses, which is its own form of a difficult owner

How Should a Condo Board Respond to a Difficult Owner, Step by Step?

Respond with a calm, documented, escalating process rather than an emotional reaction. The most defensible approach starts small, keeps a written record at every stage, and escalates only as far as each situation actually requires. Boards that follow the same sequence for every owner, regardless of who it is, protect the corporation from claims of unfair or selective enforcement.

A reliable sequence for a London or Sarnia board looks like this:

•       Understand the issue first. Separate a genuinely difficult person from a difficult situation, and confirm whether the problem is a rule breach, a nuisance, or a misunderstanding.

•       Document everything. Record the date, time, unit, and nature of each incident, and keep emails, photos, and staff or resident statements in one file.

•       Communicate in writing. Send a clear, courteous compliance letter that names the specific rule or nuisance, the corrective action required, and a reasonable deadline.

•       Offer or require mediation. Many disputes resolve once a neutral third party is involved and the owner understands the corporation is serious.

•       Escalate only when necessary. If the conduct continues, move to the appropriate tribunal or court, guided by counsel or your manager.

For the complete enforcement sequence, including written notices, cure periods, and chargebacks, read our guide: Enforcing Condo Rules in Ontario: A Board Member's Guide.

When the difficult owner is one who has simply stopped paying, the process is different again; for that specific situation, see: What Happens If Condo Owners Don't Pay Their Fees.

When Can You Take a Difficult Owner to the Condominium Authority Tribunal?

You can apply to the Condominium Authority Tribunal, known as the CAT, when a difficult owner is causing a prescribed nuisance such as noise, odour, light, vibration, smoke, or vapour, or is breaching rules that fall within the tribunal's jurisdiction, such as certain pet, parking, and storage disputes. The CAT runs an online dispute-resolution system that moves through negotiation, mediation, and, if needed, a decision from a tribunal member.

This is not legal advice, but generally speaking under Ontario law, the CAT is not the venue for dangerous behaviour or threats of physical harm. Where an owner's conduct is dangerous, or the matter falls outside the tribunal's authority, the corporation applies to the Superior Court of Justice for a compliance order under Section 134 of the Condominium Act. In many cases the court can add the corporation's costs of enforcement to the owner's account as common expenses, which can then be secured by a lien.

The practical takeaway for a London Ontario board is that escalation has a ladder, and you rarely need to climb to the top. A documented file and a firm written notice resolve most disputes long before a hearing. When they do not, having chosen the correct forum from the start saves months of delay and keeps costs recoverable.

How Does Professional Management Protect Your Board from Difficult Owners?

Strong condo management acts as both a buffer and a system. It fields the complaints so directors are not absorbing abuse personally, keeps the paper trail that makes enforcement defensible, applies the rules consistently to every owner, and advises the board on exactly when and how to escalate. If your current management company leaves volunteers to handle confrontations alone, enforces rules unevenly, or has no record when a dispute reaches the tribunal, those are gaps worth addressing.

At Sapphire, we find that boards who route difficult-owner situations through a disciplined process resolve them faster and with far less personal stress on directors. Good condominium management in London Ontario means your manager takes the first call, issues the notices, coordinates with counsel where needed, and briefs the board with facts rather than drama. That is the standard condo corp management should meet, and it is often the clearest sign of whether your current provider is truly serving you.

Handling these owners the wrong way can also raise questions about director conduct, so it helps to understand where personal exposure begins and ends; read: Condo Board Member Liability in Ontario.

If you are reassessing your management relationship more broadly, Sapphire also offers London and Sarnia boards a no-cost second opinion on their books, which is a low-pressure way to see what stronger reporting looks like. You can request that free financial review at sapphirecondomgmt.ca/financial-review-on-us.

Frequently Asked Questions

Q: How do you deal with an aggressive or abusive condo owner in Ontario?

A: Stay calm, keep every interaction documented, and never handle threats alone. The corporation has a duty under the Condominium Act, 1998 to enforce compliance, so put concerns in writing, escalate through mediation or the tribunal, and involve counsel for dangerous behaviour. If you feel physically unsafe, call 911 first and address the compliance issue afterward.

Q: Can a condo corporation charge a difficult owner for enforcement costs in Ontario?

A: Often, yes. This is not legal advice, but generally speaking under Ontario law, where a court or tribunal orders it, the corporation can add reasonable enforcement or legal costs to the owner's common expenses, which can then be secured by a lien. Your declaration and a well-drafted management file are what make this recovery realistic.

Q: Where can a London or Sarnia condo board get help with a difficult owner?

A: The Condominium Authority of Ontario offers free self-help guides and a dispute-resolution tribunal, and a professional condo management company can handle the process day to day. For hands-on support, condo management in Sarnia Ontario and London Ontario is exactly the kind of situation Sapphire Condominium Management is built to manage on a board's behalf.

Related Reading

→ Enforcing Condo Rules in Ontario: A Board Member's Guide

→ What Happens If Condo Owners Don't Pay Their Fees

→ Condo Board Member Liability in Ontario