What type of tenancy occurs when someone continues to occupy a property without legal authorization?

The correct answer is the type of tenancy known as "estate at sufferance." This situation arises when a tenant stays on the property after their lease has expired, and they do so without the landlord's permission. Essentially, they remain in possession of the property, but their legal right to do so has ended, which puts them in a vulnerable position regarding eviction.

An estate at sufferance is a unique circumstance because it can lead to various legal implications for both the landlord and the tenant. While the tenant is technically occupying the space, they may not have any legal protections typically afforded to a tenant, as they are now considered to be trespassing.

Understanding this concept helps clarify the nature of landlord-tenant relationships and the legal repercussions that arise when a lease agreement is not honored or is allowed to lapse.