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BSA 2023 § 121 — Estoppel

§ SECTION 121 · BSA 2023 · CHAPTER VIII — ESTOPPEL

Estoppel

You cannot blow hot and cold. Where a person intentionally makes another believe a thing to be true and act on that belief, he — and his representative — are barred from later denying the truth of that thing, in any suit between them.

How to read Section 121

Make another believe something and act on it → you are stopped from later denying it, in a suit between the two of you.

The representation

By declaration, act or omission, one person intentionally causes or permits another to believe a thing to be true.

The reliance

The other person acts upon that belief — he changes his position.

The bar

Neither he nor his representative may later deny the truth of that thing, in any suit or proceeding between them.

The bare Act

The section in its own words — the rule and its illustration.

Section 121 · verbatim

When one person has, by his declaration, act or omission, intentionally caused or permitted another person to believe a thing to be true and to act upon such belief, neither he nor his representative shall be allowed, in any suit or proceeding between himself and such person or his representative, to deny the truth of that thing.

Illustrations

A intentionally and falsely leads B to believe that certain land belongs to A, and thereby induces B to buy and pay for it. The land afterwards becomes the property of A, and A seeks to set aside the sale on the ground that, at the time of the sale, he had no title. He must not be allowed to prove his want of title.

In short: estoppel is a rule of fair dealing — a person cannot go back on what he deliberately made another believe and act upon. Three things must line up: a representation (by words, conduct or even a telling silence), made intentionally; the other person’s reliance on it (he acted, changing his position); and then an attempt to deny the very thing represented. When all three are present, the law shuts the door: in any suit between the two, neither he nor his representative may deny the truth of that thing. Note its nature — estoppel is a rule of evidence, not of title: it bars proof of the denied fact between these parties; it does not by itself transfer ownership or create a right.

→ This carries forward IEA 1872 § 115 — and opens Chapter VIII on estoppel.

Glossary

estoppel

A rule that bars a person from denying what he led another to believe and act on.

declaration, act or omission

The representation may be by words, conduct, or even silence where there was a duty to speak.

intentionally caused or permitted

He meant the other to believe it — or knowingly let him.

to act upon such belief

The other person changed his position in reliance on it.

representative

A person’s successor in interest (heir, assignee) — equally bound.

deny the truth of that thing

Go back on the very fact he had made the other believe.

The picture

An intended belief, acted upon, seals the maker’s lips — he cannot later deny it.

declaration / act / omission:intentionally makes Bbelieve a thing is trueB acts on the belief(changes his position)the maker is barredfrom denying itA rule of fair dealing — you cannot resile from what you made another act uponestoppel bars proof of the denied fact between the parties — it is a rule of evidence

The section, part by part

Tap a part — the picture-story tells it first; the word-by-word text and example follow.

the ruleAn intended belief, acted upon, cannot later be denied

In one lineIf you intentionally make another believe a thing and he acts on it, you are stopped from denying it in a suit between you.
1intentionally makesanother believe athing is true2the other actson that belief —changes position3he is barredfrom denying thetruth of that thingrepresentation → reliance → the maker is estopped (in a suit between them)
When one person has, by his declaration, act or omission, intentionally caused or permitted another person to believe a thing to be true and to act upon such belief,he intentionally makes another believe & act…the representation may be by words, conduct or silence, made intentionally, and the other must have acted on it…
neither he nor his representative shall be allowed, in any suit or proceeding between himself and such person or his representative, to deny the truth of that thing.→ he (and his successor) cannot deny it…then in any suit between them neither he nor his representative may deny the truth of that thing.
ExampleA tells B a debt is already paid, so B does not sue in time. A cannot later deny that the debt was paid to escape the consequence — he intentionally led B to act (not sue) on that belief.
✗ Not thisEstoppel needs intention and reliance. A careless remark the other did not act on — or a belief the maker never meant to create — does not estop him. It also binds only between these parties, and is a rule of evidence, not of title.

the illustrationA leads B to buy A’s ‘land’ — A cannot later plead no title

In one lineA falsely makes B believe land is A’s and sells it; when A later gets title and tries to undo the sale by pleading he had no title then, he is not allowed to prove it.
A falsely tells B:‘this land is mine’B buys & pays for itlater A actuallygets the title& sues to set aside saleA must NOT beallowed to provehis want of titleA is estopped — he cannot use his earlier lack of title to defeat the sale to B
A intentionally and falsely leads B to believe that certain land belongs to A, and thereby induces B to buy and pay for it. The land afterwards becomes the property of A, and A seeks to set aside the sale on the ground that, at the time of the sale, he had no title. He must not be allowed to prove his want of title.A led B to buy on a false claim of ownership…having induced B to buy and pay, A is estopped — he cannot now prove he had no title to unwind the very sale he engineered.
ExampleThe point of the illustration: even though A later becomes the true owner, he cannot rely on his earlier want of title. His own intentional misrepresentation, acted on by B, shuts him out.
✗ Not thisEstoppel does not hand B ownership by magic — it bars A from denying what he represented. It works between A and B; it is a shield against A’s denial, not a fresh title deed.

Connected provisions

§ 120 · back

Absence of consent

The close of Chapter VII (Burden of Proof) — the chapter just before estoppel.

Chapter VIII · opens

Estoppel

§ 121 opens Chapter VIII — the group of estoppel provisions. See the chapter map.

§ 122 · next

Estoppel of tenant / licensee

A specific estoppel — a tenant may not deny the landlord’s title at the start of the tenancy.

lineage

IEA 1872, § 115

Carried forward — the general rule of estoppel by representation.