Life estate
Principles

A life estate pur autre vie (Law French, "for the life of another") is held for the rest of the lifetime of a person who does not hold the estate, known as the cestui que vie (Law French, "the person who lives"). This form of life estate arises where a life tenant has disposed of the property, assuming such a disposal does not trigger any special forfeiture under the life interest instrument. It also arises where the grantor chooses to make the measuring life that of someone other than the life tenant's life. A life estate pur autre vie is most commonly created in one of two circumstances.
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