A lease (also known as a rental agreement) is a legally binding written agreement between a tenant and a manager/owner. A tenant is a person who, under a residential tenancy agreement, obtains permission to occupy a residential building as a home. A tenant also includes a tenant`s tenant. If a tenant leases all or part of a residential building to a subtenant, the primary tenant has obligations like an owner. Primary tenants must have written permission from their landlord before they can sublet or transfer the premises to another tenant or subtenant. Step 2If your dispute is still not resolved, contact the RTA to resolve your dispute on their dispute resolution service. This service uses conciliation to find an agreement that suits all parties. .