Terminology & Definitions
Possessory Estates
Future Interests
Rule Against Perpetuities
RAP Applications
100

What estate is described by the phrase “To A and her heirs”?

Fee Simple Absolute

100

What estate is created by “O to A for life”?

Life Estate

100

What future interest automatically follows a Fee Simple Subject to Condition Subsequent? 

Right to Re-Entry

100

True or False: Vested remainders are subject to RAP.

False. Vested remainders are not subject to RAP.

100

Valid under RAP? “To A for life, then to B’s children who reach 30.” B is alive and has one 5-year-old child.

Invalid. It’s possible B could have another child after the grant who doesn’t reach 30 within 21 years after B’s death


200

What type of estate is created by the phrase “To A and the heirs of her body”?

Fee Tail

200

What kind of estate is created by “To A so long as the land is used for a school”?

Fee Simple Determinable

200

What is the future interest called when the taker is unborn or unascertainable, or a condition must occur first?

Contingent Remainder

200

How long do contingent interests have to vest or fail under RAP?

Within 21 years after the death of a life in being at the creation of the interest

200

Who is the measuring life in “To A for life, then to A’s children who survive her”?

A is the measuring life

300

What future interest is created when a grantor gives less than their full estate and retains the remainder?

Reversion

300

In “To A, but if A drinks, then to B,” what are A and B’s interests?

A has a Fee Simple Subject to a Condition Subsequent; B has an executory interest

300

In “O to A for life, then to B and her heirs if B survives A,” what future interest does B have?

Contingent Remainder (condition precedent: B surviving A)

300

What is a “measuring life” under RAP?

A person alive at the creation of the interest whose life is used to determine whether the interest will vest within the perpetuity period

300

“T’s will: to A for life, then to A’s children for life, then to A’s grandchildren alive at A’s death.” Are the interests valid?

Yes. A is a measuring life. The class of A’s children closes at A’s death, and A’s grandchildren alive at that time are ascertainable.


400

What are the three requirements for a remainder to be vested?

The beneficiary must be born, ascertainable, and there must be no condition precedent

400

Between Fee Simple Determinable and Fee Simple Subject to Condition Subsequent, which reverts automatically to the grantor?

Fee Simple Determinable

400

What’s the difference between a Right of Entry and a Possibility of Reverter?

A Possibility of Reverter occurs automatically; a Right of Entry requires the grantor to re-enter.

400

Why does the law impose the Rule Against Perpetuities?

To eliminate remote contingencies and promote marketability of property


400

“To B for life, then to B’s children if they graduate law school.” Valid or invalid under RAP?

Invalid. A child of B might graduate more than 21 years after B’s death

500

What is the name of the interest that cuts short a prior interest or creates a gap?

Executory Interest (or Executory Limitation)

500

What interests are created by: “O to A for 10 years, then to B”?

A has a term of years (leasehold); B has a vested remainder

500

What future interests are created in the following conveyance:
“O to A for life, then to B and her heirs if B survives A; otherwise to C and his heirs”?

B has a contingent remainder (condition precedent: surviving A);
C has an alternative contingent remainder;
O retains no reversion, because the entire future interest is accounted for in the alternative remainders  

500

Why is “To A’s children and their heirs for so long as any are alive, then to A’s grandchildren” potentially problematic under RAP?

A’s grandchildren may not be ascertainable at A’s death, and their interest might vest too remotely (after perpetuity period)

500

T’s will devises: “To A for life, then to A’s first child to graduate college, and if no child of A graduates college, then to B.” A is alive and has no children at the time of T’s death.

Is the interest valid under the Rule Against Perpetuities?

Invalid under RAP.
The interest to A’s first child to graduate college is a contingent remainder. A could have a child after T’s death who doesn't graduate college until more than 21 years after A’s death.
Since it’s not certain that the condition (graduation) will occur within 21 years of a life in being at the creation of the interest (i.e., A), the interest violates RAP and is void.
B’s interest, being the alternative contingent remainder, also fails. Under the common-law RAP rule, if one of the alternative remainders is void, then the entire conditional structure is void — including B’s interest — because we cannot allow any possibility of remote vesting.