Final answer:
The fullest and most common form of freehold interest is a fee simple absolute, granting the owner extensive rights including disposition, use, and enjoyment of the property.
Step-by-step explanation:
The fullest and most common form of freehold interest in property is a fee simple absolute. This type of estate provides the owner with the greatest control and rights over the property. It is an inheritable and perpetual estate, meaning there are no limitations on the duration of ownership, and it can be passed down to heirs. A fee simple absolute owner has the right to use, enjoy, and dispose of the property at will, including selling it, giving it away, or bequeathing it in a will, while also bearing the responsibility to pay taxes on the inhabitants' property, which can include houses, gardens, mills, fields, vineyards, and more.