Which estate represents the most complete form of property ownership?

The fee simple absolute estate represents the most complete form of property ownership because it grants the owner the highest level of rights over the property. With a fee simple absolute, the owner has full ownership rights, which include the ability to use, sell, lease, or transfer the property without any limitations or conditions. This form of ownership is indefinite in duration and does not have a specified end date, allowing the owner to hold the estate for as long as they wish, and it can be passed on to heirs.

In contrast, other types of estates, such as fee simple determinable, impose conditions that can lead to the loss of ownership if the specified conditions are not met. Life estates, on the other hand, are limited to the duration of an individual's life and do not pass on to heirs in the same way that a fee simple absolute does. Therefore, while all these estates provide some level of ownership, the fee simple absolute is the most comprehensive, offering the greatest security and flexibility to the owner.