Specific Performance
Liquidated Damages
Mistake
Impracticability
Frustration of Purpose
100

What is specific performance?

A court order requiring a party to perform their contractual obligation, used when damages are inadequate.

100

What are liquidated damages?

Pre-agreed damages written into the contract to compensate for future breach.

100

What is mutual mistake?

A mistake made by both parties about a basic assumption that materially affects performance.

100

What is impracticability?

A supervening event makes performance extremely difficult or expensive, and the party did not assume the risk.

100

What is frustration of purpose?

A supervening event that destroys a party’s principal purpose in entering the contract.

200

When is specific performance typically available?

In contracts involving real estate, unique goods, or when cover is impossible.

200

When are liquidated damages enforceable?

When they reflect a reasonable estimate of anticipated loss and are not a penalty.

200

What is the effect of mutual mistake?

The contract is voidable by the adversely affected party if they did not bear the risk.

200

What are examples of events that can cause impracticability?

Natural disasters, government bans, wars, or extreme supply chain breakdowns.

200

What are the elements of frustration of purpose?

The purpose must be substantially frustrated, the event unforeseen, and the risk not assumed by the party.

300

When is specific performance not available?

For personal services, uncertain terms, or when enforcement would be burdensome or unfair.

300

What makes a liquidated damages clause unenforceable?

If it is a penalty — i.e., grossly disproportionate to the expected harm.

300

What is unilateral mistake?

A mistake by one party that may excuse them if enforcement would be unconscionable or the other party knew or caused it.

300

Is increased cost alone sufficient for impracticability?

No — unless it results from an unforeseen extreme event.

300

How does frustration differ from impracticability?

Impracticability makes performance too hard; frustration makes performance pointless.

400

What is the standard for granting specific performance?

The requesting party must show that legal remedies are inadequate and performance is feasible.

400

When must reasonableness of a liquidated damages clause be assessed?

At the time of contracting, not after the breach.

400

When does a party bear the risk of mistake?

If the risk is allocated by agreement, the party is consciously ignorant, or it’s reasonable to assign the risk to them.

400

Can a party be excused for impracticability if they caused the event?

No — the event must be unforeseeable and not caused by the party seeking excuse.

400

Must both parties share the same purpose for frustration to apply?

No — only the affected party’s principal purpose must be frustrated.

500

How does specific performance interact with liquidated damages clauses?

If liquidated damages are adequate, courts are less likely to grant specific performance.

500

Can a party seek both liquidated damages and actual damages?

No — liquidated damages are usually exclusive unless the contract says otherwise.

500

What is a scrivener’s error and what is the remedy?

A mistake in recording the contract — the remedy is reformation, not rescission.

500

What does the UCC require for impracticability in the sale of goods?

A showing that performance has become impracticable due to a contingency not foreseen at the time of contracting.

500

Is frustration available when the party’s purpose was personal and unknown to the other side?

No — the purpose must be known or reasonably understood by both parties.