A compliance letter does two jobs. It asks a unit owner to fix a problem, and it starts the paper trail your corporation will rely on if the problem does not get fixed. Most letters written by volunteer boards do the first job and fail the second. This guide covers which section to cite, what the letter must contain, gives you a full sample you can copy, and shows what the Tribunal will want to see behind it.
Two sections of the Condominium Act, 1998 do almost all the work. Section 117 covers danger, damage and prescribed nuisances: 117(1) for conduct likely to damage property or injure someone, 117(2) for unreasonable noise, odour, smoke, vapour, light and vibration. Section 119 is the general duty of every owner and occupier to comply with the Act, the declaration, the by-laws and the rules, and it is the hook for almost every ordinary rule breach: balcony storage, pets, parking, short-term rentals.
Safety or damage: cite 117(1) and set a deadline in days. Nuisance: cite 117(2) with dates, times and duration. Anything else: cite 119 and quote the exact rule. One letter can cite both. The sample below is a section 119 letter, the kind most boards send most often. For the long version, see sections 117 and 119 in plain language.
Section 119 of the Condominium Act, 1998 requires every owner and occupier to comply with the Act, the declaration, the by-laws and the rules. Section 17(3) puts a matching duty on the corporation: the board must take reasonable steps to ensure compliance. A hallway conversation satisfies neither. A dated letter that cites the provision, describes the facts and sets a deadline satisfies both. If the dispute ever reaches mediation, arbitration or the Condominium Authority Tribunal, the first question will be what the corporation put in writing and when.
Check your draft against this list before it goes out:
One point trips up many new directors. Ontario condo corporations do not levy free-standing fines. A letter that threatens a “$100 fine” threatens something the board has no power to impose. Nor can a letter simply charge the costs of enforcement back to the unit under the declaration: costs of obtaining compliance, including legal costs, generally reach an owner only through an order of the Condominium Authority Tribunal or the court (section 134(5) of the Act covers court orders). Write the letter as a request to comply, and confirm any wording about costs with counsel.
Replace the bracketed text with your own details. Keep the structure. It exists so that a stranger reading the file two years from now understands exactly what happened.
[Carleton Condominium Corporation No. 000]
[Corporation mailing address]
[Date]
[Owner name]
[Unit address]
Re: Compliance with Rule [3.2] (Storage on balconies), Unit [12]
Dear [Owner name],
On [July 14, 2026], the board observed [a propane tank and construction materials stored on the balcony of Unit 12]. Rule [3.2] of the corporation’s rules provides that [“balconies shall not be used for the storage of goods or materials”].
Section 119 of the Condominium Act, 1998 requires all owners and occupiers to comply with the Act, the declaration, the by-laws and the rules of the corporation.
Please remove the stored items and restore the balcony to its permitted use by [July 28, 2026]. If compliance does not occur by that date, the board may take the next step available to it under the Act. Which step that is depends on the subject matter: the Condominium Authority Tribunal hears a defined list of disputes, and a disagreement about the governing documents that falls outside it goes to mediation and then arbitration under section 132 before any court application. Where an order is made, the corporation may ask that it include its costs of obtaining compliance.
If you believe this letter was sent in error, or you need more time, contact [name] at [email] within 7 days.
Sincerely,
The Board of Directors, [Carleton Condominium Corporation No. 000]
If the owner does not comply and the matter reaches the Condominium Authority Tribunal, the letter is one exhibit in a package. The package that persuades has six parts, and a board that keeps them from the first letter onward never has to reconstruct anything:
The full inventory, and the order that persuades, is in the CAT-ready evidence package.
Deliver the letter by a method you can document: email with a delivery record, registered mail, or hand delivery noted in writing with the date and the name of the person who delivered it. Then file the letter, the proof of delivery and any response together with the photos from the original observation. When the next board inherits the file, the whole story should be in one place. Three documents per incident is the minimum: the evidence, the letter, the proof of delivery.
This guide is general information, not legal advice (current as of August 2026). Confirm the specifics of your situation with a condo lawyer or the Condominium Authority of Ontario (CAO).
Paste the letter into Word tonight if you like. Then log the issue in YardRule so the photo, the letter as sent, and the delivery record sit on one dated timeline instead of three inboxes. The 30-day pilot is the full product, no card, and the record stays readable if you stop.