When discussing estates in real estate, what does "estate at sufferance" specifically refer to?

"Estate at sufferance" specifically refers to a situation where a tenant remains in possession of the property without the landlord's consent after the lease has expired. This type of estate arises when a tenant has not vacated the premises and continues to occupy it following the termination of their lease agreement.

In this context, the tenant is not legally entitled to remain in the property since the lease has ended, but they are not considered trespassers as they originally had rightful possession of the property during the duration of the lease. The landlord has the right to take action to evict the tenant at sufferance, as the lawful agreement allowing possession has been concluded.

Other options describe different leasing situations or relationships. A tenant with a lifetime lease refers to a completely different type of tenancy that grants rights beyond the termination of a lease. A lease that continues indefinitely implies the terms of the lease allow for ongoing occupancy, which does not fit the "at sufferance" definition. Lastly, a tenant who has agreed to leave indicates an understanding for departure, thus not fitting the scenario of someone occupying against the landlord's wishes.