A commercial lease is a legally binding agreement between a landlord and tenant for the rental of commercial property. It outlines the terms of the rental, including the length of the lease, rent amount, security deposit, and other rules and regulations. The lease also includes provisions for maintenance, insurance requirements, subleasing rights, and other important details. Commercial leases are typically longer than residential leases and often require more detailed information from both parties. They are an important part of any business transaction involving real estate.