PERSONAL RISK CONCEPTS · 5 MIN READ
Legal Characteristics of Insurance Contracts
An insurance policy is a contract with a distinctive legal personality, and the exam tests each characteristic by name. It is aleatory: the values exchanged may be wildly unequal and depend on a chance event — a small premium can buy a very large claim payment, or nothing at all if no loss occurs. This contrasts with commutative contracts like a sale of goods, where the values exchanged are presumed roughly equal. It is unilateral: only the insurer makes an enforceable promise; the insured pays but promises nothing. It is conditional: the insurer's duty to perform depends on conditions such as premium payment, notice of loss, and cooperation. And it is a contract of adhesion: drafted entirely by the insurer on a take-it-or-leave-it basis, which is why courts apply contra proferentem — ambiguities are construed against the drafter, the insurer. Two further doctrines flow from the adhesion character. The doctrine of reasonable expectations, reflected in Restatement (Second) of Contracts Section 211, holds that ambiguous or surprising policy terms should be read according to the objectively reasonable expectations of the insured — in its strongest form, even where a careful reading of the fine print would have negated those expectations. Courts use it because mass-market personal lines forms are rarely read and never negotiated. The modern Restatement approach to interpretation adds that express policy terms govern, with implied terms supplementing gaps rather than overriding clear language. Finally, insurance is a contract of utmost good faith (uberrimae fidei). Both parties owe honesty above the ordinary commercial standard: the applicant must not misrepresent or conceal material facts, and material misrepresentation or concealment can allow the insurer to void coverage. On the insurer's side, modern law imposes a duty of good faith in claims handling — under the Restatement of the Law, Liability Insurance Section 13, an insurer evaluating a settlement demand within policy limits must give the insured's interests equal regard with its own, and a bad-faith refusal to settle can make the insurer liable for the full excess judgment above the policy limit.
Key rules
Insurance is aleatory — unequal values exchanged, dependent on a chance event.
A small premium may produce a large recovery or none at all, unlike commutative contracts where exchanged values are roughly equal.
Why the exam cares: Aleatory is the most tested contract characteristic, usually via its definition or the commutative contrast.
Insurance is unilateral and conditional — only the insurer promises, and only conditionally.
The insured makes no enforceable promise after paying the premium; the insurer's duty depends on satisfied conditions like notice and cooperation.
Why the exam cares: Exams pair these two adjectives in matching questions — know which describes the one-sided promise and which the performance requirement.
As a contract of adhesion, ambiguities are construed against the insurer.
Because the insurer drafts the form and the insured cannot negotiate, contra proferentem resolves unclear language in the insured's favor.
Why the exam cares: This rule decides many coverage-dispute scenarios on the exam — ambiguity means the insured wins.
Reasonable expectations can trump buried or surprising fine print.
Under the doctrine tied to Restatement (Second) of Contracts Section 211, coverage is read as an ordinary insured would objectively expect, though express terms govern where clear.
Why the exam cares: Exams test the doctrine's strong form — expectations can control even when careful reading would defeat them.
Utmost good faith binds both sides — misrepresentation voids; bad faith exposes.
Material misrepresentation or concealment by the applicant can void coverage; an insurer that fails to give the insured's interests equal regard on within-limits settlement demands can owe the entire excess judgment.
Why the exam cares: The two-directional nature of good faith — applicant honesty and insurer settlement duty — is a favorite advanced question.
Common traps
- Confusing aleatory with unilateral — aleatory describes the unequal chance-based exchange; unilateral describes the one-sided promise.
- Thinking the insured makes enforceable promises under the policy — the contract is unilateral; conditions limit the insurer's duty but are not insured promises.
- Construing ambiguity in the insurer's favor — adhesion contracts are read against the drafter, so ambiguity benefits the insured.
- Assuming bad-faith exposure stops at the policy limit — a wrongful refusal to settle within limits can make the insurer liable for the full excess judgment.
Memorize the four adjectives as a chant — aleatory, unilateral, conditional, adhesion — and attach a five-word definition to each before test day.
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