All questions
Question 1
A commercial builder entered into a written contract to construct an office building for an owner. The contract required the owner to pay the final $200,000 only after the architect appointed under the contract issued a certificate stating that the work had been satisfactorily completed. The builder finished the building with minor, nonstructural punch-list items unfinished. The architect refused to issue the certificate because of those items. The owner refused to pay the final installment. The builder sued for the $200,000.
Which legal concept is most likely to determine whether the builder can recover the final payment?
- The doctrine of substantial performance
- The effect of a condition precedent (correct answer)
- The defense of waiver
- The defense of impossibility
Explanation: Whenever a contract makes a payment contingent on a certificate, approval, or other event, you are in the territory of conditions precedent. The key question is not whether the builder substantially performed, but whether the condition to the owner's duty to pay actually occurred or was excused. Here, the contract expressly required an architect's certificate of satisfactory completion before the final $200,000 became due. Because the architect refused to issue that certificate due to unfinished punch-list items, the condition precedent never occurred. Unless the builder can show the condition was excused—for example, by the owner preventing the architect from certifying—the owner has no duty to pay. That is why the effect of a condition precedent controls.
The doctrine of substantial performance is a tempting trap, but it applies to contractual promises, not to conditions. Substantial performance might let a builder recover the contract price despite minor defects if the owner's duty is merely a promise to pay. Here, however, the certificate requirement is a condition, and conditions must be satisfied or excused, not merely substantially performed. The defense of waiver also misses the mark: the owner refused to pay, and there is no evidence the owner intentionally gave up the certificate requirement. Impossibility is irrelevant because the builder could have finished the punch-list items; performance was not impossible, just incomplete.
Remember: when you see "only after," "subject to," or "provided that," stop and analyze whether a condition precedent exists. If so, focus on whether the condition occurred or was excused—not on how well the party performed.
Question 2
A homeowner hired a contractor to renovate her kitchen for a fixed price of $50,000, with the work to be performed according to plans attached to the written contract. After the contractor began work, he told the homeowner that he would stop work unless she agreed to pay an additional $5,000. The homeowner, wanting the job finished before her daughter's wedding, orally agreed. The contractor completed the renovation. The homeowner paid only the original $50,000. The contractor now seeks to recover the additional $5,000.
Based on these facts, which legal concept is most likely to determine whether the contractor can recover the additional $5,000?
- The preexisting duty rule (correct answer)
- The doctrine of promissory estoppel
- The equitable remedy of unjust enrichment
- The defense of accord and satisfaction
Explanation: This question tests contract modification at common law. Whenever you see one party promising to pay more for work the other party is already bound to perform, ask: has the performing party given any new consideration?
Here, the contractor threatened to stop work unless the homeowner agreed to pay an extra $5,000. But stopping work would have been a breach, because the contractor already had a contractual duty to renovate the kitchen for $50,000. Under the preexisting duty rule, doing—or promising to do—something you are already legally obligated to do is not valid consideration. The homeowner's promise to pay the additional $5,000 was therefore not supported by consideration and is unenforceable.
Promissory estoppel may tempt you because the contractor performed and the homeowner received the benefit, but estoppel requires detrimental reliance on a promise. The contractor merely did what he was already required to do; there was no new reliance.
Unjust enrichment is also incorrect because it is a restitutionary theory for benefits conferred outside a contract. Here, an express contract governs the work, and the contractor was paid the original $50,000.
Accord and satisfaction is wrong too: that doctrine involves a good-faith dispute over an unliquidated amount and the creditor accepting less as full satisfaction. The contractor is not a creditor accepting a compromised payment; he is seeking extra money.
Strategy: on the bar exam, an agreement to modify a contract is unenforceable unless the modifying party gives new consideration. Spot the pattern—"I'll stop working unless you pay more"—and immediately think preexisting duty rule.
Question 3
A landowner owned a large tract and sold the northern half to a buyer. The sale left the northern parcel completely surrounded by the seller's retained land and a third party's land, with no access to any public road. The deed did not mention access. The buyer now wants to build a driveway across the seller's retained parcel to reach the road. The seller refuses.
Which legal concept is most likely to determine whether the buyer has a right to cross the seller's land?
- An easement by prescription
- An easement by necessity (correct answer)
- An easement by implication from prior use
- A revocable license
Explanation: Whenever a buyer's land becomes landlocked by a sale, the core issue is whether access was created by the conveyance itself. An easement by necessity arises when a grantor splits property in a way that leaves one parcel with no practical access to a public road unless it crosses the other parcel. Here, the sale left the northern parcel completely surrounded by the seller's retained land and a third party's land, and the deed was silent about access. Because the buyer has no other route, the law implies an easement by necessity across the seller's retained parcel, based on the presumed intent that land should not be rendered unusable.
An easement by prescription is wrong because it requires open, notorious, adverse, and continuous use for the statutory period—the buyer has not used the land at all, and the need is immediate. An easement by implication from prior use is also wrong because that doctrine depends on a visible, obvious use that existed before the sale; here the deed does not mention access, and no preexisting driveway is described. Finally, a revocable license is wrong because a license is merely personal permission, and the seller has refused to grant any such permission—whereas an easement by necessity is an enforceable property right.
Study tip: if a conveyance leaves a parcel landlocked and the deed is silent, immediately consider an easement by necessity. Prescription focuses on past use over time; prior use focuses on use before severance; necessity focuses on the lack of access created by the transfer.
Question 4
A software company in California entered into a written licensing agreement with a customer in Oregon. The agreement contained a clause stating that any dispute arising under the agreement must be brought in a specified state court in California. A dispute arose, and the Oregon customer sued the company in Oregon state court. The company moved to dismiss, relying on the forum selection clause. The customer argued that the clause should not be enforced because California was inconvenient.
Which legal concept is most likely to determine whether the Oregon court must dismiss the case?
- The right to remove a case to federal court
- The doctrine of forum non conveniens
- The requirement of subject matter jurisdiction
- The enforceability of a forum selection clause (correct answer)
Explanation: Whenever you see a dispute about where a lawsuit may be filed after the parties agreed to a location in a contract, your first thought should be forum selection clause enforceability. A valid clause is presumptively enforceable; the chosen forum should hear the case unless enforcement would be unreasonable or unjust.
Here, the California software company and Oregon customer agreed that disputes must be brought in a specified California state court. When the customer sued in Oregon instead, the company's motion to dismiss relies on that clause. Oregon should enforce the clause unless the customer can show fraud, overreaching, or that enforcement would violate a strong public policy. General inconvenience to the customer is not enough to override a freely negotiated forum choice.
The doctrine of forum non conveniens is the trap: it does allow dismissal when an alternative forum is far more appropriate, but it is a discretionary doctrine used when there is no enforceable forum selection clause, or sometimes to send a case to a foreign court. Because a valid clause exists, enforceability—not convenience—is the controlling concept.
The right to remove a case to federal court is irrelevant here: removal involves moving a case from state to federal court, not dismissing a state case based on a private agreement. Subject matter jurisdiction is also a red herring—it concerns a court's authority over the type of case, not the parties' contractual choice of forum.
Study tip: When a contract chooses a forum, ask "Is this clause enforceable?" first. Only if the clause fails should you consider forum non conveniens.
Question 5
A customer obtained a judgment against a delivery company that was organized as a single-member LLC. The customer now seeks to collect the judgment from the LLC's sole member personally. The member never held regular meetings, used the LLC bank account to pay personal expenses, and contributed only $500 to start a business that required substantial capital. The customer argues that the LLC is merely the member's alter ego.
Which legal concept is most likely to determine whether the customer can hold the member personally liable?
- The doctrine of ultra vires acts
- The fiduciary duty owed by an LLC member
- The doctrine of piercing the corporate veil (correct answer)
- The law of fraudulent transfers
Explanation: Whenever a judgment creditor wants to reach an LLC owner's personal assets, the central issue is the limited liability shield. The facts here—using the LLC account for personal expenses, thin capitalization, and disregard of formalities—are classic factors alleging the LLC is the member's alter ego. That is exactly the language of the doctrine of piercing the corporate veil, which applies to LLCs as well as corporations. Under this doctrine, a court may disregard the separate entity and hold the member liable when the LLC is a mere instrumentality and adherence to the separate-entity form would promote injustice.
The doctrine of ultra vires acts is irrelevant: that involves a corporation or LLC acting beyond its lawful powers, not personal liability for an owner's misuse of the entity. Likewise, the fiduciary duty owed by an LLC member runs to the LLC and its members, not to a creditor seeking to collect a judgment. The law of fraudulent transfers deals with hiding or transferring assets to defeat creditors, but the customer's claim is not that assets were fraudulently conveyed; it is that the LLC itself is the member's alter ego.
Strategy tip: when you see the phrase "alter ego" or facts about commingling funds, undercapitalization, and skipped formalities, think veil piercing immediately. The exam is testing whether you can match fact patterns to the correct liability doctrine, not whether you remember every corporate-law nuance.
Question 6
A man spent several hours drinking whiskey and using cocaine at a party. He then drove to a house, broke in through a rear window, and took a laptop. He was arrested and charged with first-degree burglary. At trial, he presented evidence that, because of his intoxication, he did not know he was entering a building and did not intend to commit a felony inside. He had no history of mental illness.
Which legal concept is most likely to determine whether the intoxication evidence can reduce his liability for the burglary charge?
- The doctrine of diminished capacity based on mental abnormality
- The defense of insanity based on mental disease
- The effect of voluntary intoxication on a specific-intent crime (correct answer)
- The defense of unconsciousness or automatism
Explanation: Whenever you see a burglary charge, first identify the mens rea required: common-law burglary is a specific-intent crime because it requires intent to commit a felony inside the structure. That classification drives the intoxication analysis. Voluntary intoxication generally cannot excuse criminal conduct, but it can negate the specific intent needed for a specific-intent crime. Here, the man's evidence that he did not know he was entering a building and did not intend to commit a felony goes directly to that required intent. If his intoxication prevented him from forming the intent, it could reduce his burglary liability. That is why the effect of voluntary intoxication on a specific-intent crime is the governing concept.
The diminished capacity doctrine does not fit because it usually involves a mental abnormality or defect, not voluntary intoxication. The insanity defense also fails because the man has no history of mental illness; intoxication alone is not a mental disease for insanity purposes. Finally, unconsciousness or automatism involves involuntary, non-purposeful conduct, but this man voluntarily consumed the alcohol and cocaine, so that defense does not apply.
On exam day, remember the shortcut: voluntary intoxication can negate specific intent but never general intent. Crimes like burglary, robbery, larceny, and premeditated murder are specific-intent crimes; assault, battery, and rape are not.
Question 7
During an argument at a bar, a patron intentionally shoved another patron, who fell and struck his head. The shove would have caused only minor bruising in an ordinary person. The injured patron, however, had a preexisting blood-clotting disorder and suffered a life-threatening brain bleed. The shover did not know about the disorder and argued that the severity of the injury was unforeseeable.
Which legal concept is most likely to determine whether the shover is liable for the full extent of the injuries?
- The eggshell plaintiff rule (correct answer)
- The defense of contributory negligence
- The doctrine of superseding cause
- The defense of assumption of risk
Explanation: This question tests tort causation and damages, specifically how the law treats a plaintiff's preexisting vulnerability. When a defendant commits a tort—intentional or negligent—the law generally holds the defendant liable for the full harm caused, even if the severity was unexpected.
Here, the shover committed a battery by intentionally shoving the patron. The fact that an ordinary person would suffer only minor bruising does not limit liability. Under the eggshell plaintiff rule, the defendant takes the victim as he finds him. If a preexisting condition makes the injury worse than expected, the defendant is still liable for the full extent of the injuries. That rule directly applies.
Contributory negligence is not relevant because the injured patron's blood-clotting disorder was not negligent conduct; he did nothing to contribute to his own injury. The doctrine of superseding cause also misses the mark—there was no independent intervening event after the shove; the brain bleed flowed directly from the fall. Assumption of risk requires knowingly and voluntarily encountering a known danger, but being shoved during a bar argument is not voluntary acceptance of injury.
On exam day, when you see a plaintiff with a preexisting condition and a defendant claiming the injury was unforeseeable, immediately think eggshell plaintiff rule. The defendant's lack of knowledge about the condition is no defense—liability extends to all actual harm caused.
Question 8
For 18 years, a neighbor used a 10-foot strip of the owner's land as a path to reach a public lake. The owner knew about the use and, on several occasions, told the neighbor, 'You're welcome to use the path anytime.' The neighbor never asked permission and believed the strip was hers. The owner now plans to build a fence across the strip. The neighbor claims she owns the strip by adverse possession.
Which legal concept is most likely to determine whether the neighbor acquired title to the strip?
- The doctrine of prescriptive easement
- The doctrine of permissive use (correct answer)
- The right to revoke a license
- The doctrine of boundary by agreement
Explanation: Whenever you see a question asking whether long-term use of another's land ripens into ownership, focus on hostility. Adverse possession requires actual, open, notorious, exclusive, and hostile use for the statutory period. Here, the decisive question is whether the neighbor's use was hostile or permissive.
The owner's repeated statement, "You're welcome to use the path anytime," made the use permissive. Even though the neighbor never asked and subjectively believed the strip was hers, the owner's consent defeats hostility. Under the doctrine of permissive use, use with permission cannot become adverse no matter how long it continues, so the neighbor did not acquire title.
The doctrine of prescriptive easement is tempting because it also involves long-term use, but it would only give a right to use the path, not ownership, and it likewise fails because the use was permissive. The right to revoke a license is related—the owner's words created a license, and the owner may revoke it—but that doctrine explains the owner's power, not why the neighbor's claim fails. Boundary by agreement is irrelevant: there was no boundary dispute or agreed line; the neighbor claims title to a strip she knew belonged to the owner.
Remember: on adverse possession questions, always check for permission first. Phrases like "you're welcome to" or "I don't mind" signal permissive use and defeat both adverse possession and prescriptive easements.
Question 9
In a breach-of-contract suit between two companies, the plaintiff seeks to introduce an email sent by the defendant's sales manager to the plaintiff's purchasing agent. The email states, 'We owe you $25,000 from the September delivery; we will pay it next month.' The defendant objects that the email is hearsay. The sales manager had authority to speak about the matter.
Which legal concept is most likely to determine whether the email is admissible?
- The requirement of the best evidence rule
- The hearsay exception for statements against interest
- The rule governing admissions by a party-opponent (correct answer)
- The exclusionary effect of the parol evidence rule
Explanation: When you see an out-of-court statement offered to prove the truth of the matter, your first instinct should be hearsay. But here, the email is an out-of-court statement by the defendant's sales manager, who had authority to speak about the matter. That triggers the rule governing admissions by a party-opponent: a statement made by a party's agent or employee on a matter within the scope of that relationship and while the relationship exists is not hearsay. Because the manager had authority to speak about the September delivery, the email is admissible as an opposing party's admission, regardless of whether the manager was personally available or had firsthand knowledge.
The best evidence rule is a trap—it concerns proving the contents of a writing by original or duplicate, not whether an email's content is hearsay. The hearsay exception for statements against interest also looks tempting, but that exception requires the declarant to be unavailable and applies to declarations against pecuniary or penal interest; a party admission can be used even when the declarant is available and does not require unavailability. The parol evidence rule is irrelevant because it excludes prior or contemporaneous oral agreements that contradict a written contract, and no contract interpretation issue is raised here.
Remember: an opposing party's own statement—or one made by an authorized agent—is automatically nonhearsay. When you see a statement by an employee/agent against their employer, think "party admission" before any hearsay exception.
Question 10
A plaintiff filed a negligence action in federal court based on diversity of citizenship. The plaintiff's claim arises under state law. The state where the federal court sits has a statute requiring a plaintiff in a negligence action against a physician to file a certificate of merit from a qualified expert with the complaint. The federal rules of civil procedure do not require such a certificate. The defendant moves to dismiss based on the state statute.
Which legal concept is most likely to determine whether the federal court must apply the state certificate-of-merit requirement?
- The doctrine of supplemental jurisdiction
- The Full Faith and Credit Clause
- The law of the case doctrine
- The Erie doctrine (correct answer)
Explanation: When a federal court hears a state-law claim based on diversity jurisdiction, there is a constant tension: which procedural rules apply—state or federal? That tension is the heart of the Erie doctrine. Erie requires federal courts sitting in diversity to apply state substantive law, but federal procedural rules govern the mechanics of litigation. Here, the state certificate-of-merit requirement is designed to weed out frivolous medical-negligence claims before trial, and courts generally treat it as substantive because it affects the plaintiff's ability to bring the claim at all. Since the Federal Rules of Civil Procedure do not impose this requirement, Erie directs the court to decide whether the state rule is substantive enough to apply; if it is, the motion to dismiss should succeed.
Supplemental jurisdiction is irrelevant—it concerns whether a federal court can hear additional state claims related to a federal claim, not whether state procedural rules apply. The Full Faith and Credit Clause governs recognition of judgments and public records across states, not intra-court procedural requirements. Law of the case doctrine applies to rulings already made within the same litigation, not to initial motions to dismiss.
Your takeaway: whenever a diversity case involves a state procedural-looking rule, ask "Erie?"—then distinguish substance from procedure. If the rule shapes the outcome or the very viability of the claim, it is likely substantive.
Question 11
A state-owned hospital purchases medical supplies through a procurement office. A state regulation directs the office to purchase supplies only from vendors with their principal places of business in the state. An out-of-state medical supply company that lost a bid sued the hospital's purchasing director in federal court, seeking an injunction requiring the hospital to consider out-of-state bids.
Which legal concept is most likely to determine whether the out-of-state company can obtain the injunction?
- The prohibition against state impairment of contracts
- The Privileges and Immunities Clause of Article IV
- The guarantee of equal protection of the laws
- The market participant exception to the Commerce Clause (correct answer)
Explanation: Whenever you see a state or local government buying or selling goods, think about the Commerce Clause—but then ask whether the government is acting as a regulator or as a participant in the marketplace. That distinction is the key to this question.
Here, the state-owned hospital is purchasing supplies, and the regulation directs the procurement office to favor in-state vendors. Because the state is acting as a buyer—a market participant—it may favor local businesses without violating the Commerce Clause. The out-of-state company cannot obtain an injunction because the market participant exception permits exactly this kind of discriminatory purchasing.
The other choices miss the mark. The prohibition against state impairment of contracts is irrelevant because no contract has been impaired; the company merely lost a bid. The Privileges and Immunities Clause of Article IV protects citizens' fundamental rights, like pursuing a livelihood, but it does not generally protect out-of-state corporations competing for government procurement. The guarantee of equal protection of the laws is also not the best fit: while state action must not be arbitrary, economic discrimination favoring local vendors is reviewed rationally and is not the specific doctrine governing this fact pattern.
Your study tip: whenever a government entity is buying or selling in the marketplace rather than regulating private conduct, immediately consider the market participant exception. If the government is wearing its "customer" hat, the Commerce Clause does not force it to do business with out-of-state parties.
Question 12
A driver ran a red light and rear-ended another car at an intersection, causing the second car to burst into flames. A passerby pulled the driver of the second car from the burning vehicle. The passerby then sued the driver who ran the red light. That driver argued that the passerby voluntarily assumed the risk of injury by rushing into the fire.
Which legal concept is most likely to determine whether the passerby can recover from the driver?
- The rescue doctrine (correct answer)
- The defense of assumption of risk
- The firefighter's rule
- The sudden emergency doctrine
Explanation: Whenever you see a bystander injured while rescuing someone from a peril the defendant created, your mind should go to the rescue doctrine. It is a negligence rule that says a defendant owes a duty not only to the person put in danger but also to a rescuer who comes to help, because "danger invites rescue." Here, the driver who ran the red light caused the collision and the fire; the passerby's act of pulling the trapped driver from the flames was a foreseeable response to that danger. As long as the passerby did not act recklessly, the negligent driver can be held liable for the passerby's injuries.
The defense of assumption of risk is the trap: even if the passerby knowingly faced danger, public policy encourages rescue, so the driver cannot use that voluntary exposure as a complete defense where the rescue doctrine applies. The firefighter's rule is also tempting but wrong: it bars professional rescuers like firefighters and police from suing for injuries caused by the inherent risks of their jobs, and it does not apply to private citizens. Finally, the sudden emergency doctrine concerns how a defendant's own conduct is judged during an unexpected crisis; it is about the standard of care, not a plaintiff's right to recover.
Your study tip: on torts questions, separate who created the peril, who was rescued, and who is suing. If the plaintiff is a good Samaritan rescuing someone from a defendant-caused danger, choose the rescue doctrine.