Ontario Lease Review Checklist: What to Look for Before Signing

Most people read a lease the way they read a terms-of-service agreement: quickly, focused mainly on the number that matters most (the rent), and trusting that the rest is boilerplate. For a short-term, low-stakes arrangement, that might be a reasonable approach. For anything longer or more significant, it’s worth reading a lease the way you would any other contract you’re about to be bound by for months or years.

A structured review — working through the same categories every time, in the same order — helps because it’s easy to miss something important when you’re reading a long document once, under time pressure, often while also trying to decide whether you even want the unit. Breaking the review into a handful of clear categories makes it far more likely you’ll catch the details that actually matter before you’re legally committed to them.

This matters more than it might seem, because a signed lease is generally treated as the final, authoritative record of what both sides agreed to. If a term turns out to be less favourable than you expected, or missing entirely, “I didn’t notice that clause” isn’t usually a basis to change it after the fact. The review happens once, before signing, and it’s the point in the relationship where you have the most leverage to ask questions, request changes, or simply walk away if something doesn’t work for you. Once you’ve moved in, that leverage largely disappears, which is exactly why a careful, structured read beforehand is worth the extra twenty minutes it takes.

Start with the fundamentals: the correct legal names of the landlord and tenant, the exact address and unit, the start date, and the length of the term. Errors here are more common than you’d expect, and they can create real problems later if the lease doesn’t accurately identify who is actually bound by it.

Confirm what happens at the end of the fixed term — whether the lease automatically converts to month-to-month, whether it includes a renewal option, or whether it requires a new agreement to continue. If you have a specific reason to need certainty about your housing situation past the initial term (a lease tied to a work contract, for example), this is one of the first things worth clarifying, not something to leave until the term is almost up.

It’s also worth checking whether the copy you’re being asked to sign matches what you were shown or discussed earlier in the process. It’s not unusual for small details to shift between a verbal discussion, an emailed draft, and the final version presented for signature — sometimes innocently, sometimes not. Reading the final document in full, rather than assuming it matches an earlier version you already reviewed, is a simple habit that catches a surprising number of last-minute changes.

Confirm the rent amount, due date, and accepted payment methods, along with what happens if a payment is late — including the exact late fee, if any, and whether it complies with applicable limits rather than being an arbitrary flat penalty. Ask whether utilities, parking, storage, or any other recurring cost is included in the rent or billed separately, and get a clear, itemized answer rather than a vague assurance that “it’s not much extra.“

Check the deposit terms carefully. Confirm exactly how much is being collected, what it’s described as (a rent deposit is treated differently than a purported “damage deposit,” which generally isn’t permitted on top of a rent deposit for most residential tenancies), and how and when it will be applied or returned. If the lease describes any rent increase mechanism, confirm the notice period required and whether the proposed approach is consistent with the rules that actually apply to your unit.

Finally, ask whether the figure you’re being quoted is truly all-in. Some listings advertise a lower base rent while separately itemizing costs that most tenants would expect to be included, such as basic utilities or parking in a building where street parking isn’t realistic. Getting a single, complete monthly figure in writing — not just the base rent — makes it far easier to budget accurately and to compare this lease fairly against other options you may be considering.

Read through the rules that will actually affect how you live day to day: pets, guests, smoking, noise, parking, storage, and any restrictions on decorating or making minor alterations. Consider not just whether you can technically live with each rule, but whether it fits how you actually intend to use the space over the full length of the lease.

Look for maintenance and repair provisions — who is responsible for what, and how repair requests should be made. Look for language about entry to the unit by the landlord, and confirm it reflects a reasonable notice requirement rather than open-ended access. And if you anticipate any need for flexibility — bringing on a roommate, subletting during a temporary absence, or eventually assigning the lease to someone else — check what the lease says about consent and process for each of those scenarios now, rather than discovering the answer only when you actually need it.

If you have a pet, or expect you might get one during the lease term, this is worth confirming explicitly rather than relying on a general sense that “most places are fine with it.“ Similarly, if you work from home, run a small business, or expect frequent overnight guests, checking that the lease doesn’t restrict these in ways that matter to you avoids an unpleasant surprise partway through the tenancy, when changing course is far more disruptive than it would have been at signing.

Confirm what notice is required to end the tenancy, from both sides, and how that notice needs to be delivered. Check whether the lease includes an early termination option and, if so, exactly what it costs and how it must be exercised. Understanding these terms before you sign — while you have full negotiating leverage and no urgency — is far easier than trying to understand them for the first time when you’re already trying to leave.

It’s also worth understanding move-out expectations at this stage: what condition the unit needs to be returned in, whether a professional cleaning is required, and how any deductions from the deposit would be communicated and justified. Our companion guide on ending a lease agreement in Ontario goes into this in more depth.

Certain patterns are worth extra scrutiny. A lease that pressures you to sign immediately, without time to actually read it, is a signal to slow down rather than speed up. Blank spaces left for terms to be filled in later, verbal promises that aren’t reflected anywhere in the written document, and unusually one-sided clauses (for example, allowing the landlord to end the tenancy at will while giving the tenant no equivalent right) are all worth raising directly before signing.

Vague or missing terms are their own kind of red flag. A lease that doesn’t clearly state the rent, the term, or who’s responsible for utilities isn’t just incomplete — it leaves room for a dispute later about what was actually agreed, with neither side having a clear document to point to.

Be cautious, too, of any clause that purports to waive rights that are generally guaranteed regardless of what a lease says, or that requires you to agree to something that sounds like it might not be enforceable — a blanket ban on all guests, for example, or a fee disproportionate to any actual cost it’s meant to cover. A clause being written into a lease doesn’t automatically make it valid, and a landlord including an overreaching term isn’t necessarily a sign of bad faith, but it is a reason to ask questions rather than assume it will be enforced exactly as written.

Once you’ve worked through the categories above, do a final pass comparing what the landlord told you verbally against what’s actually written in the lease. If there’s a gap — a promised repair, an agreed move-in date, an exception to a standard clause — ask for it to be added in writing before you sign, rather than relying on memory.

Keep a signed copy of the final lease for your own records, along with any amendments or side letters, and store it somewhere you can easily find it again. A careful review doesn’t guarantee a dispute-free tenancy, but it substantially reduces the odds of being surprised later by a term you didn’t fully understand at signing. If anything remains unclear after your own review, asking the landlord directly — and getting the answer in writing — costs nothing and closes the gap far more reliably than proceeding on an assumption.