Which estate lasts for the duration of the tenant's life?

The correct answer is a conventional life estate, which is an estate that lasts for the duration of the tenant's life. In this arrangement, the tenant, or life tenant, has the right to use and enjoy the property for as long as they are alive. Once the life tenant passes away, the property typically reverts back to the original grantor or to a designated party as specified in the estate's terms, which is known as the "remainder."

In contrast, a fee simple estate provides the owner with maximum ownership rights that last indefinitely, and it does not terminate upon the owner's death. A leasehold estate grants the tenant rights to occupy and use the property for a specified period, but it is not tied to the tenant's lifespan and will end once the lease term concludes. A life estate pur autre vie is also a life estate, but it is measured by the life of someone other than the tenant, meaning that the duration of the estate depends on another person's life rather than the tenant's own.