Diversity Jurisdiction in Federal Courts
Diversity jurisdiction is one of the three subject matter jurisdiction types the Nevada FLE tests, and it lets a federal district court hear a dispute between citizens of diff
6. Diversity Jurisdiction in Federal Courts
Federal district courts exercise several types of subject matter jurisdiction. The Nevada FLE tests just the three most prominent types of subject matter jurisdiction. The first is diversity jurisdiction, which allows courts to hear disputes between citizens of different states if a statutorily specified amount-in-controversy requirement is met. 28 USC §1332.
- One rationale for diversity jurisdiction is that state courts might favor the claims of their own citizens over those of citizens from other states.
- To invoke diversity jurisdiction under 28 USC §1332, diversity must be complete. In other words, no party on one side of the case may be a citizen of the same state as a party on the other side of the case.
- Citizenship for diversity purposes is determined in the same manner as presence for personal jurisdiction (Concept 2 above).
- Individuals are residents of the state in which they are domiciled.
- Corporations are residents of both their state of incorporation and the state in which they have their principal place of business.
- Only the citizenship of the parties is relevant for determining the existence of diversity citizenship. The citizenship of other individuals or organizations with an interest in the dispute, but who are not parties to the dispute (such as an insurance company), is not relevant.
- [All plaintiff s must be diverse from all defendants. If there are multiple parties and one party destroys diversity, a court may not exercise diversity jurisdiction.]
- Only the citizenship of the parties at the time litigation commenced is relevant for determining the existence of diversity citizenship. Subsequent changes to citizenship will not alter the court’s jurisdiction.
- Diversity jurisdiction requires a specified amount in controversy, which eliminates small claims based on diversity jurisdiction from federal court.
- [Federal law currently requires that amount to be more than $75,000.]
- An individual plaintiff may aggregate claims against an individual defendant in a suit (see Concept 9) to meet the amount-in-controversy requirement. The claims do not have to be related to meet that requirement.
Diversity jurisdiction lets a federal district court hear a dispute between citizens of different states when complete diversity exists and the amount in controversy is more than $75,000. The rationale tested is that a state court might favor its own citizens over outsiders, so diversity gives the out-of-stater a neutral federal forum.
Diversity jurisdiction is one of the three subject matter jurisdiction types the Nevada FLE tests. Two pieces have to line up. First, the diversity itself must be complete: no party on one side of the case is a citizen of the same state as any party on the other side. If there are several plaintiffs and several defendants, every plaintiff must be diverse from every defendant, and if even one party destroys that diversity, the court may not exercise diversity jurisdiction at all. Partial overlap is fatal; minimal diversity is not enough here. Second, the amount in controversy must be more than $75,000. The phrase is more than, not at least, so a claim sitting exactly at $75,000 does not qualify; it has to exceed that figure.
- 1Different states with complete diversity: no party on one side may be a citizen of the same state as any party on the other side, and one party can destroy diversity.
- 2Amount in controversy more than $75,000: exactly $75,000 fails because the floor is more than, not at least.
- 3Count only the citizenship of the parties, and only as of the moment litigation commenced.
Citizenship is determined the same way presence is for personal jurisdiction. An individual is a citizen of the single state where that individual is domiciled. A corporation is a citizen of two places at once: its state of incorporation and the state of its principal place of business. Only the citizenship of the parties counts. A non-party with an interest in the dispute, such as an insurance company that is not itself named, has citizenship that is simply irrelevant. Citizenship is fixed at the moment the litigation commenced, so a party who later moves and changes domicile does not change the court's jurisdiction one way or the other. Finally, a single plaintiff may aggregate claims against a single defendant to reach the amount in controversy, and those claims do not have to be related to each other.
A claim sitting exactly at $75,000 does not qualify; it has to exceed that figure. And only the citizenship of the parties counts, measured at commencement: a non-party insurer's citizenship and a party's post-filing move are both irrelevant.
The amount-in-controversy requirement belongs to diversity jurisdiction only. It is not a gate on federal-question jurisdiction, so a distractor that imposes the dollar floor on a federal-question case is testing a requirement that does not exist there.
different states, complete diversity, more than $75,000. Three boxes, all three must check for diversity jurisdiction. Run them in order and the trap usually falls out on the first or second box.
Complete, not minimal: every plaintiff must be diverse from every defendant.
One shared state on opposite sides, and the whole case is out.
"One party destroys diversity" is a closed, exact rule.
parties only, measured at commencement.
A non-party insurer's citizenship is noise.
A party's later move is noise.
Lock citizenship at the moment suit was filed.
Person = one home (domicile).
Corporation = two homes (state of incorporation and principal place of business).
A corporation shares a state with the other side through either home.
"More than $75,000" means strictly above.
Exactly $75,000 fails.
And the dollar floor is a diversity-only gate; it never attaches to a federal-question case.
A retiree domiciled in state X sues two defendants over a botched home renovation: a contractor who is an individual domiciled in state Y, and a building-supply company incorporated in state Z with its principal place of business in state X. The retiree's combined claims exceed eighty thousand dollars. The contractor's liability insurer, an entity organized in state X, is not named as a party. After suit is filed, the contractor permanently relocates to state X. The retiree wants the case heard in federal court on diversity jurisdiction.
The court may not exercise diversity jurisdiction. The amount is fine and the insurer and the post-filing move are both noise, but one defendant's principal place of business in the plaintiff's state destroys complete diversity, and that is fatal.
An answer that loosens the diversity standard, saying minimal or partial diversity is enough, or that only the named individuals must be diverse, or that a corporation is a citizen of only one of its two homes.
Diversity must be COMPLETE: every plaintiff must be diverse from every defendant, one party can destroy diversity, and a corporation is a citizen of BOTH its state of incorporation and its principal place of business.An answer that uses "$75,000 or more" or "at least $75,000," or that judges citizenship at the time of judgment or after a party's later move.
The floor is MORE THAN $75,000 (exactly $75,000 fails), and citizenship is fixed at the moment litigation COMMENCED, so a post-filing change is ignored.An answer that turns on the citizenship of an interested non-party, typically an insurer, or on a party's relocation after filing.
Only the citizenship of the PARTIES counts, and only as of commencement; an interested non-party's state and a later move are both irrelevant.An answer that imposes the amount-in-controversy floor on a federal-question case, or that denies a single plaintiff the ability to aggregate unrelated claims against one defendant.
The dollar floor is DIVERSITY-ONLY and does not gate federal-question jurisdiction; and one plaintiff MAY aggregate even unrelated claims against a single defendant.the stem sets up a federal-court filing and asks whether diversity jurisdiction is available, then loads the facts with a tempting side issue.
Watch for four recurring shapes.
A shared-state party hiding on the wrong side, often a corporation whose principal place of business sits in the opposing party's state, which destroys complete diversity.
A dollar figure parked exactly at seventy-five thousand or phrased as at least, which fails the more-than floor.
A non-party insurer whose citizenship is dangled to look decisive but is irrelevant.
A party who moves after filing, which never changes the analysis because citizenship is locked at commencement.
When you see a diversity question, run the three boxes in order: different-state parties with complete diversity, then more than seventy-five thousand dollars, then confirm you are counting only parties and only at the time suit began.
If a corporation appears, check both of its homes.
If the question is really a federal-question case, the dollar floor does not apply at all.
A landscaper who is a citizen of state X and a retiree who is a citizen of state Y joined as plaintiffs to sue two defendants in federal court over a soured business deal. One defendant is a trucking company that is a citizen of state Z. The other defendant is a software firm that is a citizen of state Y. Each plaintiff's claim well exceeds the statutory amount in controversy. The defendants moved to dismiss for lack of subject matter jurisdiction, arguing that the parties are not completely diverse.
Is the court likely to find that diversity jurisdiction is available?
A consultant who is a citizen of state X sued a manufacturer that is a citizen of state Y in federal court for breach of a single supply contract. The complaint demands damages of exactly seventy-five thousand dollars, and the consultant does not assert any other claim against the manufacturer. The parties agree they are citizens of different states. The manufacturer moved to dismiss, contending the amount in controversy is not satisfied.
Is the amount-in-controversy requirement for diversity jurisdiction satisfied?
A homeowner who is a citizen of state X sued a roofing company that is a citizen of state Y in federal court, seeking damages of two hundred thousand dollars for a defective roof. The roofing company is insured by an insurer that is a citizen of state X, and the insurer is funding the defense, but the homeowner did not name the insurer as a party. The roofing company moved to dismiss, arguing that because its insurer shares the homeowner's state, the parties are not completely diverse.
Is the court likely to find that diversity jurisdiction is available?
When she filed her federal lawsuit, an engineer was domiciled in state X. She sued a distributor that is a citizen of state Y, and her claim exceeds the statutory amount in controversy. Several months after filing, the engineer permanently relocated and established a new domicile in state Y, where the distributor is a citizen. The distributor then moved to dismiss for lack of diversity, pointing to the engineer's new domicile in its own state.
Is the court likely to retain diversity jurisdiction?
A freelance designer who is a citizen of state X has two entirely unrelated disputes with the same client, an individual who is a citizen of state Y. The first is an unpaid invoice worth fifty thousand dollars, and the second is property damage worth forty thousand dollars; neither claim alone exceeds the statutory amount in controversy. The designer brought both claims against the client in a single federal lawsuit and seeks to combine their value to satisfy the amount in controversy.
May the designer aggregate the two claims to meet the amount-in-controversy requirement?