What type of lease is defined as having a fixed term, such as six months, that does not renew automatically?

The correct choice is defined as an "estate for years." This type of lease has a specific, fixed duration agreed upon by both the landlord and tenant, such as six months or one year, and it does not automatically renew when the term expires. The lease will explicitly state the start and end dates, ensuring clarity regarding the tenancy period. Once the term concludes, the lease is considered expired unless both parties agree to extend it or enter into a new lease.

In contrast, a period to period lease (often referred to as a month-to-month lease) renews automatically at the end of each period until either party provides notice to terminate. An estate at will allows tenants to occupy a property for an indefinite period but can be terminated by either party at any time. Lastly, a tenancy at sufferance occurs when a tenant remains on the property without the landlord's consent after the lease has expired. Understanding these distinctions helps clarify why "estate for years" fits the definition provided in the question.