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Find a Lawyer » Canada Legal Guides » Money, Taxes & IP Canada » How Much Does It Cost to Draft a Commercial Sublease Agreement in Toronto?

How Much Does It Cost to Draft a Commercial Sublease Agreement in Toronto?

19 Jul 2026 4 min read No comments Money, Taxes & IP Canada
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Drafting a commercial sublease agreement in Toronto typically involves law firm fees ranging from $1,500 to $3,500 CAD. You will also likely need to pay the head landlord’s legal fees for reviewing and consenting to the sublease, which can add another $1,000 to $2,500 CAD to your overall costs.

Finding the perfect commercial space in Toronto can be incredibly expensive, which is why subleasing a portion of an existing office or retail unit is a popular choice for growing businesses. 🏢 Whether you are an established company trying to offset the rent of unused square footage, or a startup looking for a shorter lease term, a commercial sublease can be a fantastic financial strategy. However, commercial tenancy laws in Ontario are notoriously complex and heavily favour the property owner.

Many business owners make the critical mistake of using a free, generic sublease template downloaded from the internet. In Ontario, commercial leases are governed by the Commercial Tenancies Act, but the specific terms of your contract almost always override the general rules. A poorly drafted sublease can leave you fully responsible for thousands of dollars in property damage, unpaid rent, and potential litigation at the Superior Court of Justice.

Step-by-Step Process in Toronto

Whether your commercial space is located in downtown Toronto, Scarborough, or Etobicoke, the process of subleasing requires careful negotiation and strict adherence to the original master lease. 📝 Most successful businesses rely on a local law firm to guide them through these essential steps.

Step 1: Reviewing the Master Lease

Before you even advertise your space, you must review your original contract (the master lease or head lease). Almost all commercial leases in Toronto contain a strict clause prohibiting subletting without the prior written consent of the landlord. Your law firm will review this document to determine exactly what financial and corporate information the landlord requires to approve a new subtenant.

Step 2: Vetting the Subtenant

You cannot simply hand over the keys to the first interested party. 👤 As the original tenant (the sublandlord), you remain legally responsible for paying the rent to the head landlord, even if the subtenant defaults. You must perform thorough due diligence by requesting the subtenant’s corporate financial statements, credit reports, and business references.

Step 3: Requesting Landlord Consent

Once you find a qualified subtenant, your law firm will prepare a formal request for consent to the head landlord. This package includes the proposed sublease agreement and the subtenant’s financial background. In Ontario, a landlord cannot unreasonably withhold consent, but they are entitled to charge a review fee to cover their own legal expenses.

Step 4: Drafting the Sublease Agreement

The sublease agreement must clearly outline the exact square footage, the rent schedule, and who is responsible for operating costs like property taxes, utilities, and maintenance (TMI). 💵 Crucially, the sublease must explicitly incorporate the terms of the master lease, ensuring the subtenant is bound by the same building rules, such as operating hours and signage restrictions.

Step 5: Executing the Agreement and Providing Insurance

Before the subtenant moves in, they must provide a certificate of commercial general liability insurance. This insurance must list both you (the sublandlord) and the head landlord as additional insured parties. Once the insurance is verified and the security deposit is paid, all parties can sign the final agreement.

To clarify the chain of responsibility, here is a breakdown of the roles in a sublease scenario:

Party RoleLegal ResponsibilityFinancial Risk
Head LandlordMaintains the building and collects master rentLowest risk, as they can pursue the original tenant for missed rent
Original Tenant (Sublandlord)Collects rent from subtenant, pays head landlordHighest risk, fully liable if the subtenant causes damage or leaves
SubtenantPays rent to sublandlord, follows building rulesModerate risk, could be evicted if the sublandlord fails to pay the head lease

How Much Does it Cost in Toronto?

Commercial real estate transactions involve multiple parties, which means legal and administrative fees can accumulate quickly. 💰 Here is what you can generally expect to pay when drafting a commercial sublease in Toronto:

  • Law Firm Drafting Fees: A specialized commercial real estate lawyer generally charges between $1,500 and $3,500 CAD to draft and negotiate the agreement.
  • Landlord Consent Fees: The master lease usually requires the tenant to pay the landlord’s legal fees for reviewing the sublease, typically costing $1,000 to $2,500 CAD.
  • Security Deposit: The subtenant is usually required to provide first and last month’s rent, plus a security deposit equivalent to 1-3 months of rent.

How Long Does the Process Take?

Drafting the document and negotiating terms between the sublandlord and subtenant usually takes 1 to 3 weeks. ⏳ However, obtaining formal written consent from a busy Toronto head landlord can add another 2 to 4 weeks. It is highly recommended to start this process at least two months before the desired move-in date.

Frequently Asked Questions (FAQ)

Can I charge the subtenant more rent than I currently pay?

It depends on your master lease. Many commercial leases in Toronto include a profit-sharing clause, meaning if you sublet the space for a profit, the head landlord is entitled to 50% to 100% of that excess rent.

What happens if the subtenant refuses to pay rent?

You are still legally obligated to pay the full monthly rent to the head landlord. You would then need to take legal action against the subtenant to evict them and recover the lost funds.

Can the head landlord just say no?

Under Ontario law, unless the lease strictly prohibits subleasing entirely, a landlord cannot arbitrarily or unreasonably withhold consent. They must have a valid commercial reason, such as the subtenant having terrible credit or planning to open a competing business.

Does a sublease end when my master lease ends?

Yes. A sublease cannot extend beyond the term of the original master lease. In fact, most subleases are drafted to end one day before the master lease expires to ensure a clean handover of the property.

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