A residential lease is a contract between:

A residential lease is fundamentally a contract between a lessor (the party granting the lease, typically the property owner or landlord) and a lessee (the party receiving the lease, usually the tenant). This agreement outlines the terms under which the lessee can occupy the property, including rent, duration, responsibilities, and other conditions pertinent to the tenancy.

This option captures the essential legal relationship involved in leasing residential property, where the lessor maintains ownership and certain rights over the property while granting specified rights to the lessee in exchange for rent. This creates a clear framework for both parties to ensure compliance with the lease's terms and conditions.

The other choices do not represent the core relationship established by a residential lease. For example, a relationship between an owner and his/her agent pertains to representation in real estate transactions, not the lease itself. Similarly, the terms mortgager and mortgagee relate to financing real estate rather than leasing it, while a tenant and leasing agent may be involved in a leasing transaction but do not represent the direct contractual obligations inherent in a residential lease.