THEORIES & CORE RIGHTS
Right to Exclude/Use
Finders and Possession
Adverse Possession
Estates and Future Interests
100

This theory justifies giving property rights to the first person who takes possession.

What is first possession?

100

This is considered the most fundamental property right.

What is the right to exclude?

100

Property unintentionally lost by the owner.

What is lost property?

100

Physical use of land like a reasonable owner.

What is actual possession?

100

Default estate with full ownership.

What is fee simple absolute?

200

This theory says people gain property rights by working on or improving something.

What is labor theory?

200

This type of property (open to the public) makes it harder for owners to exclude people.

What is commercial property open to the public?

200

Property intentionally placed but forgotten.

What is mislaid property?

200

Possession must be visible and obvious.

What is open and notorious?

200

Estate that automatically ends upon an event.

What is fee simple determinable?

300

This theory says property rules should benefit the most people overall.

What is maximizing societal happiness (utilitarianism)?

300

Owners generally can exclude anyone unless the reason falls into this category.

What is a prohibited reason (e.g., discrimination)?

300

Property intentionally relinquished.

What is abandoned property?

300

Possession cannot be shared with the public or owner.

What is exclusive?

300

Estate where if event occurs, grantor can terminate the estate (O to A, provided that it is used for X) limitation

What is fee simple subject to condition subsequent?

400

This theory connects property ownership to independence and participation in society.

What is ensuring democracy?

400

Property rights are limited when exercising them would harm these broader concerns.

What are human values / public policy concerns?

400

Finder wins against everyone except this person.

Who is the true owner?

400

Possession without permission.

What is hostile/adverse?

400

Future interest that waits patiently and does not cut short.

What is a remainder?

500

This case says that just chasing a wild animal is not enough—you must have control over it.

What is Pierson v. Post?

500

This doctrine limits how an owner can use their land when it interferes with others.

What is nuisance?

500

A baseball is almost caught, but another person grabs it in a chaotic crowd after interference.

What is Popov (pre-possessory interest)?

500

A person uses land like an owner, openly, continuously, and without permission for the statutory period.

What is adverse possession (all elements satisfied)?

500

“O to A for life, then to B if B graduates law school.”

What is a contingent remainder?