Final answer:
A life tenant cannot sell the property to a third party because full ownership and the ability to transfer the property are not included in a life tenant's rights.
Step-by-step explanation:
The question revolves around the rights associated with a life estate, particularly what a life tenant cannot do with the property. A life tenant is someone who has the right to use and enjoy a property during their lifetime, but this right is limited and does not include full ownership of the property. From the given options, a life tenant cannot legally sell the property to a third party, as full ownership—the ability to transfer the property—is not within a life tenant's bundle of rights.However, a life tenant can indeed lease the property to others, make improvements to the property, and occupy the property. These acts are within their rights so long as they do not compromise the value of the property for the remainderman, who is the person entitled to the property after the life estate ends. The main answer to the question, then, is that a life tenant cannot sell the property to a third party.