Commercial Lease Agreements in Ontario: What Tenants Should Review Before Signing

Entering into a commercial lease is one of the most significant contractual commitments many businesses will make. Whether a business is opening a new location, expanding operations, or relocating to a larger space, the terms of a commercial lease can have substantial financial and operational consequences.

Unlike residential leases, commercial leases are heavily negotiated contracts that often contain complex provisions governing rent, maintenance obligations, liability allocation, and termination rights. Business owners considering a commercial lease in Ontario should carefully review the terms of the lease before signing to ensure they fully understand their rights and obligations.

Understanding the Structure of a Commercial Lease

Commercial leases are typically structured to define the relationship between the landlord and the tenant for the duration of the lease term. These agreements outline the financial obligations of the tenant as well as the landlord’s responsibilities regarding the premises.

Most commercial leases address issues such as:

• base rent and additional rent

• permitted use of the premises

• maintenance and repair obligations

• insurance requirements

• lease renewal options

• assignment and subletting rights

Because commercial leases often run for several years, the financial impact of these provisions can be significant.

Base Rent and Additional Rent

Commercial leases commonly divide rent into two categories: base rent and additional rent.

Base rent refers to the fixed amount payable for the use of the premises.

Additional rent may include a range of additional costs associated with operating and maintaining the property, such as:

• property taxes

• building insurance

• maintenance costs

• common area maintenance (CAM) expenses

• utilities

Tenants should carefully review how additional rent is calculated and whether the landlord has discretion to pass through certain costs.

Personal Guarantees

Landlords frequently require business owners to provide a personal guarantee for the obligations of the tenant under the lease.

A personal guarantee means that the individual signing the guarantee may become personally liable for the tenant’s obligations if the business is unable to meet its lease commitments.

This can expose the business owner’s personal assets to potential liability. Tenants should carefully consider the scope and duration of any personal guarantee before agreeing to it.

Lease Term and Renewal Options

The lease term determines how long the tenant has the right to occupy the premises.

Commercial leases may include:

• an initial fixed lease term

• options to renew the lease for additional periods

Renewal options can be valuable for businesses that rely on maintaining a stable location. However, renewal provisions often require tenants to provide notice within a specific timeframe before the end of the lease term.

Tenants should ensure they understand how renewal options operate and whether rental adjustments apply during renewal periods.

Maintenance and Repair Obligations

Commercial leases frequently allocate responsibility for maintenance and repairs between the landlord and the tenant.

Tenants may be responsible for maintaining the interior of the premises, while landlords may retain responsibility for structural components of the building.

However, the exact allocation of responsibilities varies between leases. Tenants should review these provisions carefully to understand the extent of their maintenance obligations.

Assignment and Subletting

Businesses sometimes need flexibility to assign or sublet their premises during the lease term.

Commercial leases typically include provisions governing:

• assignment of the lease to a new tenant

• subletting part or all of the premises

• landlord approval requirements

Many leases require the landlord’s consent before a tenant may assign or sublet the premises. Tenants should review these provisions to ensure they understand the conditions under which assignments or subleases may occur.

Why Legal Review of Commercial Leases Matters

Commercial leases are often lengthy and complex documents that allocate risk between the landlord and the tenant.

Before signing a lease, business owners may wish to obtain legal advice to ensure they understand:

• the financial obligations created by the lease

• potential risks associated with personal guarantees

• limitations on assignment or subletting

• renewal rights and termination provisions

Carefully reviewing a commercial lease in advance can help businesses avoid unexpected liabilities and ensure that the lease terms align with their operational needs.

Speak With a Lawyer Before Signing a Commercial Lease

Business owners considering a commercial lease should carefully review the terms of the agreement before signing.

If you are reviewing a commercial lease or negotiating the terms of a lease agreement, you can Book a Consultation to discuss your situation and determine the appropriate next steps.