“Breaking a lease” means that a tenant wants to leave their unit before their tenancy agreement is over. For example, a tenant who signed a one year lease might want to move out after eight months.
A tenant and landlord can agree to break a lease. It is best if this agreement is in writing and signed by the landlord and the tenant. You can use Form N11: Agreement to End the Tenancy. If the landlord is not willing to break the lease, the tenant can assign the unit to a new tenant with the landlord’s consent.
For more information see the brochure: How a Tenant Can End Their Tenancy.
Source: www.sjto.gov.on.ca