Which type of estate grants the owner all legal rights without any limitations?

The correct choice is Fee Simple Absolute because it represents the highest form of ownership in real estate. An owner of a Fee Simple Absolute has complete control over the property and can use it, lease it, sell it, or pass it on to heirs without restrictions. This type of estate is not contingent upon any conditions or limitations, providing the most extensive rights possible.

In contrast, other options include various forms of ownership that come with certain limitations or conditions. For instance, a Fee Simple De-feasible is a type of estate that can be terminated upon the occurrence of a specified event, meaning that the owner does not have complete, unrestricted power over the property. Similarly, a Fee Simple Determinable automatically ends and reverts to the original grantor if certain conditions are not met. Lastly, a Life Estate grants ownership for the duration of a person's life, after which the property ownership reverts back to another party, thus imposing time limitations on the ownership rights.