All questions
Question 1
On March 1, 2025, Dana was injured when a metal scaffold collapsed at a construction site. The scaffold had been manufactured by ScaffoldCo, Inc. and sold to the site owner by Builders Supply Co. On February 1, 2027, Dana filed a diversity action against Builders Supply Co., alleging that Builders Supply designed, manufactured, and sold the defective scaffold. Builders Supply's answer, served February 15, 2027, identified ScaffoldCo as the actual manufacturer. ScaffoldCo had received a copy of the original complaint from Builders Supply on February 10, 2027, and its claims manager immediately recognized that Dana had sued the wrong company. On April 1, 2027, Dana moved for leave to amend to add ScaffoldCo as a defendant. The applicable limitations period is two years.
Should the court grant Dana's motion and allow the amendment to relate back?
- Yes, because the claim arises from the same occurrence, and ScaffoldCo had notice and knew Dana would have sued it but for her mistake about the manufacturer. (correct answer)
- Yes, because Dana filed the original complaint before limitations expired, so the later amendment is timely and should be allowed.
- No, because ScaffoldCo was not served with process within 90 days after the original complaint was filed, so the notice requirement for relation back is not satisfied.
- No, because Dana did not name ScaffoldCo in the original complaint before limitations expired, and an amendment adding a new party cannot relate back.
Explanation: Whenever you see a plaintiff seeking to add a defendant after the limitations period has run, the question is relation back under Rule 15(c). An amendment adding a party can relate back only if (1) it arises from the same transaction or occurrence, (2) the new party received notice of the action within the Rule 4(m) 90-day period, and (3) the new party knew or should have known that it would have been sued but for a mistake about the proper party's identity. Here Dana's original complaint was timely, but she sued Builders Supply rather than ScaffoldCo, the actual manufacturer. The new claim arises from the same scaffold collapse, satisfying the first element. ScaffoldCo received a copy of the original complaint from Builders Supply within that 90-day window—that is notice of the action, though not formal service—and its claims manager immediately recognized Dana had sued the wrong company. Dana's error was precisely a mistake about identity/manufacturer, so the third element is satisfied. Thus the amendment should relate back, and the court should grant leave.
The idea that filing a timely original complaint alone makes a later amendment timely misses that adding a new party still requires satisfying Rule 15(c. The claim that ScaffoldCo was not served within 90 days fails because the rule requires notice of the action, not service, and ScaffoldCo had notice through Builders Supply. And the objection that ScaffoldCo was not named before limitations ignores that relation back exists exactly to correct misidentification after limitations; a new party can be added when the rule's conditions are met. On exam, run through same occurrence, timely notice, and mistake about identity—if all three are present, relation back is proper.
Question 2
Within the limitations period, Plaintiff was injured when an unidentified driver ran a red light. Plaintiff filed a timely federal complaint naming the driver as 'John Doe' and describing the vehicle and accident. More than 90 days later, Plaintiff learned the driver's identity and, after the limitations period had expired, moved to amend the complaint to substitute Richard Roe as the defendant. Roe admits that he learned of the lawsuit from a newspaper article within 90 days after the complaint was filed.
Under the Federal Rules of Civil Procedure, will the amendment relate back to the date of the original complaint?
- Yes, because the claim against Roe arises out of the same accident and Roe had timely notice of the action.
- Yes, because Roe knew or should have known that the action would have been brought against him but for Plaintiff's mistake.
- No, because Roe did not receive service of process within the 90-day period required by Rule 4(m).
- No, because Plaintiff's failure to identify Roe was not a mistake concerning the proper party's identity. (correct answer)
Explanation: Whenever an amendment names a new defendant after the limitations period, apply Rule 15(c)(1)(C): same transaction, notice to the new party within the Rule 4(m) 90-day window, and the new party knew the suit would have been brought against him but for a mistake about identity. Here, Roe learned of the case from a newspaper article within 90 days, and the accident is the same, so those parts are met. The missing element is mistake. Naming "John Doe" because the driver was unidentified is lack of knowledge, not a mistake concerning identity. Thus the amendment does not relate back: "No, because Plaintiff's failure to identify Roe was not a mistake concerning the proper party's identity."
The "Yes, because the claim arises out of the same accident and Roe had timely notice" answer omits the required mistake. The "Yes, because Roe knew or should have known…" answer confuses knowledge with mistake—knowledge is only one requirement; it cannot manufacture the mistake. The "No, because Roe did not receive service of process within the 90-day period" answer is wrong because Rule 15(c) asks whether the new party received notice, not formal service; the Rule 4(m) service deadline is separate.
Study tip: John Doe substitutions are a classic relation-back trap. Distinguish "mistake" (wrong name used) from "ignorance" (no name known); only a mistake saves the claim.
Question 3
Plaintiff sued Defendant in federal court for breach of an express warranty arising from Defendant's faulty repair of Plaintiff's roof. Before the statute of limitations expired, Plaintiff filed the breach-of-warranty claim. After the limitations period for a negligence claim had run, Plaintiff moved to amend the complaint to add a negligence claim based on the same faulty repair. Defendant objected solely on limitations grounds.
Under the Federal Rules of Civil Procedure, should the court permit the amendment?
- No, because the negligence claim has different elements and was not fairly suggested by the original complaint.
- No, because an amendment may add a claim after limitations only if the original complaint gave explicit notice of the new theory.
- Yes, because the amendment arises out of the same conduct, transaction, or occurrence as the original complaint. (correct answer)
- Yes, because Rule 15(c) permits any post-limitations amendment if the defendant had actual notice of the lawsuit.
Explanation: Whenever you see a post-limitations amendment, focus on Federal Rule of Civil Procedure 15(c)(1)—relation back. The key question is whether the new claim arises out of the same conduct, transaction, or occurrence set out in the original pleading. Here, the original complaint alleged faulty roof repair as breach of warranty; the amended negligence claim is based on exactly the same faulty repair. Because the original complaint was timely filed, relation back makes the amendment effective as of that earlier filing date, defeating the limitations objection.
The answer choice that says "No" because the negligence claim has different elements and was not fairly suggested is off the mark: Rule 15(c(1)(B) does not require the same elements nor that the new legal theory appeared in the original complaint—it requires a common factual core. Similarly, the choice demanding that the original complaint gave "explicit notice of the new theory" wrongfully imports a notice-of-claim standard that Rule 15(c) does not contain; the requisite nexus is conduct, transaction, or occurrence, not notice of theory. And the "actual notice of the lawsuit" answer is also flawed: actual notice matters under Rule 15(c(1)(C) when the amendment changes the party against whom a claim is asserted, but here the same defendant is involved; moreover, actual notice alone cannot cure amendment if the new claim arises from a different transaction.
So the court should permit the amendment because it arises out of the same conduct, transaction, or occurrence as the original complaint. On the exam, after a limitations question, always test whether the amendment shares a factual nucleus with the original claim. If yes, new legal theories against the same party can relate back; save actual-notice analysis for party changes.
Question 4
Plaintiff filed a federal complaint alleging fraud. The complaint alleged: 'At a meeting on March 3, Defendant told Plaintiff that the company's annual revenue was $10 million. This statement was false when made and was known by Defendant to be false. Plaintiff relied on the statement and invested $500,000.'
Under the Federal Rules of Civil Procedure, is this allegation sufficient to satisfy the heightened pleading requirement for fraud?
- Yes, because it states the time, place, speaker, content, and Plaintiff's reliance.
- Yes, because knowledge and intent may be alleged generally under Rule 9(b).
- No, because it does not allege with particularity the facts showing why the statement was false. (correct answer)
- No, because fraud claims must be supported by a verification under oath.
Explanation: Whenever you see a fraud allegation in federal court, remember Rule 9(b) demands particularity: the who, what, when, where, and how — specifically, the facts showing why the statement was false. Here, the complaint gives the time (March 3), place (a meeting), speaker (Defendant), content ($10 million revenue), and reliance. But it only asserts the statement was false, without alleging any factual basis — like actual revenue figures or documents showing the true amount. That missing "why" is fatal. The correct answer is the one that says the allegation fails because it does not allege with particularity the facts showing falsity.
The choice claiming it is sufficient because it states time, place, speaker, content, and reliance misses the key requirement: the circumstances of the falsity must be detailed, not just the statement itself. The choice saying knowledge and intent may be alleged generally is true under Rule 9(b) — but that only covers state of mind, not the substantive facts of the fraud. The verification-under-oath choice is wrong; Rule 9(b) does not require a sworn verification (that's for some state courts or specific statutes).
Study tip: When you see "fraud" in a pleading question, immediately ask: "Does it explain why the statement was false?" If not, it fails — even if it nails the who/what/when/where.
Question 5
Seller sued Buyer in federal court for the price of goods delivered. Buyer's answer denied liability but did not assert a claim that the goods were defective and caused $50,000 in lost profits. The first action ended in judgment for Seller. Buyer then filed a second federal action against Seller for breach of implied warranty arising from the same defective goods.
Under the Federal Rules of Civil Procedure, is Buyer's second action barred?
- No, because Buyer's claim was a permissive counterclaim that Buyer could elect to bring separately.
- No, because Buyer's claim for lost profits exceeds the amount of Seller's claim.
- Yes, because Buyer's claim was a compulsory counterclaim arising from the same transaction or occurrence. (correct answer)
- Yes, because Buyer's failure to assert the claim in the first action waived all claims against Seller.
Explanation: Whenever you see a second federal lawsuit after a prior federal judgment, ask whether the claim now asserted could have been raised as a counterclaim in the first case—and if so, whether it was compulsory under Rule 13(a). That distinction drives claim preclusion.
Buyer's second claim for breach of implied warranty arises from the same defective goods as Seller's suit for the price. The very defect Buyer now uses to claim lost profits would also have been his defense to Seller's action for the price. Thus the counterclaim is compulsory: it arises from the same transaction or occurrence as Seller's claim. Because Buyer failed to assert it in the first action, it is now barred and the second action cannot proceedfaremul.
The "permissive counterclaim" choice misreads the key test. A permissive counterclaim is one that arises from an unrelated transaction or occurrence; here both claims grow out of the same sale and delivery of goods. The"lost profits exceed Seller's claim" choice is legally irrelevant amount does not make a counterclaim permissive or compulsory; large related counterclaims can be handled under supplemental jurisdiction. The"waived all claims against Seller" choice goes too far: a compulsory counterclaim only bars claims arising from that same transaction or occurrence, not every conceivable claim Buyer might hold against Sellerfaremul
Study tip: on bar exam, identify compulsory counterclaim by asking whether both claims share a common factual nucleus—same contract, same goods, same delivery. If yes, failure to raise it earlier bars the later claimfaremul
Question 6
In a federal products-liability action, Plaintiff sued Defendant for injuries from a defective power tool. Defendant was served with the complaint and filed an answer on March 1. On March 25, Defendant filed a third-party complaint against the tool's manufacturer, seeking indemnity for any liability to Plaintiff, without first obtaining leave of court.
Under the Federal Rules of Civil Procedure, was Defendant's third-party complaint properly filed?
- Yes, because a defendant may implead any nonparty who may be liable for all or part of the plaintiff's claim.
- No, because a third-party complaint requires leave of court unless it is filed within 14 days after the defendant serves its answer. (correct answer)
- Yes, because the third-party complaint was filed before the close of discovery.
- No, because a defendant may implead only persons already parties to the action.
Explanation: Whenever you see a question about impleader under Rule 14, your first instinct should be to check the timing. The substantive test is whether the third-party defendant may be liable to the defendant for the plaintiff's claim, but the procedural gate is the filing window. Here, the defendant served its answer on March 1. Under Rule 14(a)(1), a defendant may file a third-party complaint without leave only if it does so within 14 days after serving its answer. That window closed on March 15. Because the defendant filed on March 25—ten days later—it needed leave of court and failed to obtain it, so the filing was improper.
The choice stating "a defendant may implead any nonparty who may be liable for all or part of the plaintiff's claim" states the substantive rule correctly but omits the critical timing condition, making it an incomplete justification. The choice asserting the filing was proper because it occurred "before the close of discovery" is a trap; discovery deadlines are entirely irrelevant to the impleader deadline. The last choice, "a defendant may implead only persons already parties to the action," misstates the rule completely—impleader exists specifically to bring in a nonparty who owes the defendant indemnity or contribution.
Your study tip: memorize the 14-day post-answer window for impleader as of right. If you see a date beyond that, the answer is always "requires leave of court." Don't let the substantive rule distract you from the procedural deadline.
Question 7
Plaintiff filed a federal complaint alleging that Defendant's factory discharged pollutants onto Plaintiff's land. After Defendant filed an answer, Plaintiff discovered that Defendant had installed a new discharge pipe and was sending additional pollutants onto Plaintiff's land. Plaintiff moved to file a supplemental pleading adding the new discharges.
Under the Federal Rules of Civil Procedure, should the court grant the motion?
- No, because the new discharges are a separate nuisance that must be asserted in a new action.
- Yes, because a supplemental pleading may set out transactions or occurrences that happened after the date of the pleading to be supplemented. (correct answer)
- No, because a supplemental pleading may only assert claims that arose before the original complaint was filed.
- Yes, because Rule 15(a) permits amendment to add post-filing events without regard to the original claim.
Explanation: When you see a question about adding claims or events after a lawsuit has started, immediately distinguish between amending a pleading under Rule 15(a) and supplementing it under Rule 15(d). Here, the new discharges happened after the original complaint was filed, making this a supplemental pleading issue. Rule 15(d) expressly allows a court to permit a party to serve a supplemental pleading setting out any transaction, occurrence, or event that happened after the date of the pleading to be supplemented. The new discharges are exactly such post-filing occurrences, so the motion should be granted, even if they technically constitute a separate nuisance. The choice saying "No, because the new discharges are a separate nuisance" is wrong because Rule 15(d) does not require the new event to be a continuation of the original tort; it exists to promote judicial economy and avoid multiple lawsuits arising from the same general dispute. The choice claiming "No, because a supplemental pleading may only assert claims that arose before the original complaint was filed" gets the temporal rule backwards—that is the domain of Rule 15(a) amendments, not supplements. Finally, the choice citing "Rule 15(a) permits amendment to add post-filing events" is incorrect because Rule 15(a) governs pre-filing events and defects in the original pleading, whereas Rule 15(d) is the specific rule for post-filing occurrences. For your strategy, memorize the temporal split: Rule 15(a) is for what happened before filing, Rule 15(d) is for what happened after—and you will never confuse these motions on the bar exam.
Question 8
Plaintiff sued Defendant for breach of contract. Defendant's answer denied liability but did not plead the affirmative defense of accord and satisfaction. At trial, Plaintiff did not object when Defendant introduced evidence that the parties had signed a settlement agreement releasing the claim. After the jury returned a verdict for Defendant, Plaintiff argued that the defense had been waived. Defendant moved to amend the answer to conform to the evidence.
Under the Federal Rules of Civil Procedure, should the court grant Defendant's motion?
- No, because a defendant waives any affirmative defense not pleaded in the answer.
- No, because Defendant cannot amend the pleadings after the jury has returned a verdict.
- Yes, because the issue was tried by the parties' implied consent and must be treated as if it were raised in the pleadings. (correct answer)
- Yes, because Rule 15(a) allows amendment as of course within 21 days after the verdict.
Explanation: Whenever you see a post-verdict motion to amend, your mind should jump to Rule 15(b), not Rule 15(a). The critical issue is whether the unpleaded affirmative defense of accord and satisfaction was tried by implied consent. The court should grant the motion because the issue was tried by the parties' implied consent and must be treated as if it were raised in the pleadings. Under Rule 15(b), when evidence is introduced at trial without objection, the parties have consented to try that issue, and the court must permit amendment to conform to the evidence. Here, Plaintiff failed to object to the settlement agreement evidence, so the defense is deemed raised, and the verdict stands.
The choice saying "No, because a defendant waives any affirmative defense not pleaded" is a trap—while Rule 8(c) generally requires pleading affirmative defenses, waiver is not absolute; Rule 15(b) creates a specific exception for issues tried by consent. The choice saying "No, because Defendant cannot amend after the jury has returned a verdict" misreads the rule—Rule 15(b) explicitly allows amendment after trial and even after judgment to conform to the evidence. The choice saying "Yes, because Rule 15(a) allows amendment as of course within 21 days after the verdict" conflates the rules; Rule 15(a) governs pre-trial amendments, and the 21-day window applies to amending as of course, not to conforming to evidence after a verdict.
For your study, remember: failure to plead an affirmative defense is not automatic forfeiture if the evidence comes in without objection. Look for the phrase "without objection" and you've found implied consent—answer "yes" to the amendment.
Question 9
In a federal action, Plaintiff served Defendant with a complaint. Twenty days later, Defendant served a motion to dismiss under Rule 12(b)(6). Twenty-five days after that motion was served, Plaintiff filed an amended complaint without obtaining Defendant's consent or leave of court.
Under the Federal Rules of Civil Procedure, is Plaintiff's amended complaint properly filed?
- Yes, because a party may amend once as of course within 21 days after service of a responsive pleading, and Defendant has not served a responsive pleading.
- Yes, because a party may amend once as of course until the court rules on a Rule 12(b)(6) motion to dismiss.
- No, because the time to amend as of course ran 21 days after service of the motion to dismiss, and Plaintiff neither obtained consent nor leave. (correct answer)
- No, because an amended complaint may be filed only with the court's permission once a motion to dismiss is pending.
Explanation: Whenever you see an amendment question, think Federal Rule of Civil Procedure 15(a)(1): a plaintiff may amend once as of course either within 21 days after serving the complaint, or, for a complaint requiring an answer, within 21 days after service of a responsive pleading or a Rule 12(b) motion, whichever is earlier. Here, Defendant's 12(b)(6) motion was served 20 days after service of the complaint, so Plaintiff had 21 days from that motion to amend without consent or leave. Plaintiff filed 25 days later, so the as-of-course window had closed. Since Defendant did not consent and Plaintiff did not seek leave, the amended complaint was not properly filed.
The choice saying "yes, because a party may amend once within 21 days after service of a responsive pleading, and none was served" misses that a Rule 12(b) motion also starts the clock. The choice saying "yes, until the court rules on the motion" confuses the timing: leave may be available before ruling, but the as-of-course right expires 21 days after service of the motion, not after the court's decision. The choice saying "only with the court's permission once a motion is pending" is also wrong because the rule permits amendment as of course during that 21-day period, and after it expires, written consent of the opposing party is an alternative to court permission.
Practice tip: in Rule 15(a)(1) questions, always calculate from the earliest trigger—responsive pleading or Rule 12(b) motion—and ask whether consent or leave was obtained after that window.
Question 10
In a federal action, Defendant served an answer containing a counterclaim on March 1. On March 10, Plaintiff served a motion to dismiss the counterclaim under Rule 12(b)(6). The court denied the motion on April 5, and Plaintiff's attorney received notice of the denial that same day.
Under the Federal Rules of Civil Procedure, what is the deadline for Plaintiff to serve a reply to the counterclaim?
- March 22, because a reply to a counterclaim is due 21 days after service of the answer.
- April 19, because the responsive pleading is due 14 days after notice of the court's denial. (correct answer)
- April 12, because the motion to dismiss extended the time by 30 days.
- No reply is due, because a counterclaim is deemed denied if no reply is served.
Explanation: When you see a deadline question involving a motion to dismiss, your first thought should be Rule 12(a)(4). The general 21-day clock for a reply to a counterclaim gets suspended while a Rule 12(b)(6) motion is pending. Here, the answer was served on March 1, but the Plaintiff's motion to dismiss was served on March 10. That motion freezes the response deadline. When the court denies the motion (April 5), the clock restarts, giving you 14 days from notice of that denial. April 5 + 14 days = April 19, which is the correct deadline.
Now, why are the others wrong? The "March 22" choice incorrectly applies the standard 21-day rule (March 1 + 21) but ignores that the motion pauses that deadline. The "April 12" choice assumes a 30-day extension, but Rule 12(a)(4) only grants a 14-day reset – 30 days is typical for post-trial motions or appeals, not a 12(b)(6) denial. Finally, the "no reply is due" choice is a dangerous trap: while a counterclaim is indeed deemed denied if you fail to reply (Rule 8(b)(6)), that is a consequence of missing the deadline, not an excuse to avoid serving one. A reply is still mandatory.
For the exam, remember the "14-day reset" rule: any time a 12(b)(6) motion is denied, you get 14 days from notice. Don't mix it up with the 30-day extensions elsewhere.
Question 11
On June 1, 2026, a property owner filed a federal action against a city, alleging that the city's denial of a special-use permit on May 1, 2026, violated the Equal Protection Clause. The city answered. On July 1, 2027, the city denied the owner's second application for the same permit, applying a newly enacted ordinance. The applicable limitations period for an equal protection claim is one year. On August 1, 2028, the owner moved to amend the complaint to add a claim challenging the second denial. The city opposed, arguing that the claim was untimely.
How should the court rule on the owner's motion?
- Grant, because the claim arises from the same occurrence as the original complaint and therefore relates back to the original filing date.
- Grant, because a court should allow a party to supplement a pleading to include a post-filing event in the interest of judicial economy.
- Deny, because a court may not consider events that occurred after the original complaint was filed; the owner must file a new action.
- Deny, because the second denial is a post-filing event and the claim, which does not relate back to the original filing, is barred by limitations. (correct answer)
Explanation: When you see a post-filing event in a limitations problem, separate two questions: can the court consider the new event, and can the new claim survive the statute of limitations? The first is governed by Rule 15(d) on supplemental pleadings; the second by Rule 15(c) on relation back.
The second denial was a new decision on a new application, made under a newly enacted ordinance. It created a separate equal protection claim that accrued on July 1, 2027. With a one-year limitations period, the claim expired on July 1, 2028. The owner moved to add it on August 1, 2028, so it is untimely. Although Rule 15(d) allows supplemental pleadings for events occurring after the original filing, supplementation does not automatically relate back—and this claim does not arise from the same conduct, transaction, or occurrence as the original denial. Therefore the court should deny the motion.
The "same occurrence" argument is wrong: the second denial is a distinct occurrence, so relation back is unavailable. The "judicial economy" argument is also wrong: judicial economy cannot override an expired limitations period. And the "court may not consider events after filing" choice is too absolute—Rule 15(d) permits supplementing for post-filing events; it just does not rescue a time-barred claim.
Study tip: when a new claim arises after the original complaint, ask independently when that claim accrued. If its own limitations period ran before the motion, deny—even if the same parties and general subject matter are involved.
Question 12
In a federal action, the complaint contains ten numbered paragraphs alleging breach of contract and consequential damages. The defendant's answer states: 'Defendant lacks knowledge or information sufficient to form a belief about the truth of the allegations in paragraphs 1 through 10.'
Under the Federal Rules of Civil Procedure, what is the effect of this statement?
- It operates as a denial of every allegation in the complaint. (correct answer)
- It operates as an admission of every allegation except the amount of damages.
- It is insufficient because a defendant must either admit or deny each allegation specifically.
- It operates as a denial only if the defendant states the reason for its lack of knowledge.
Explanation: Whenever you see a pleading response on the FRCP, remember the three options a defendant has: admit, deny, or state that they lack sufficient knowledge or information to form a belief. That third option is not an evasion—it is a formal denial under Rule 8(b)(5). Here, the defendant's statement explicitly says they lack such knowledge about paragraphs 1 through 10, so it operates as a denial of every allegation in the complaint. That makes the first choice correct.
The second choice, claiming it operates as an admission except for damages, is wrong because this statement is a denial, not a failure to respond. Under Rule 8(b)(6), only a failure to deny results in an admission, and even then damages are treated differently. The third choice says the defendant must admit or deny each allegation specifically, but Rule 8(b)(5) permits a blanket statement of lack of knowledge when it covers all allegations—the rule does not require a paragraph-by-paragraph breakdown. The fourth choice adds a condition that the defendant must state the reason for its lack of knowledge; the rule imposes no such requirement. The mere statement is enough.
On exam day, when you see "lacks knowledge or information sufficient to form a belief," immediately label it as a denial. It's a common trap to think it's an admission or that it needs extra detail—know that this simple phrase is both sufficient and effective.