Most Important Civil Procedure Cases to Know

Civil Procedure is unusual among 1L courses because the governing law is mostly text — the Federal Rules and 28 U.S.C. — and the cases exist to interpret that text. So the cases that matter are the ones that supply a test the rules do not: minimum contacts, the well-pleaded complaint rule, plausibility, the summary judgment burden, and the identity-of-parties requirement for preclusion.

Your professor's coverage will vary, and that variation is real. Some courses spend six weeks on personal jurisdiction and skip class actions entirely; others front-load Erie. Casebook choice drives this: Yeazell tends toward a transactional narrative, Subrin/Minow toward history and litigation reform, Glannon-style courses toward rule mechanics. Check your syllabus before you decide Shady Grove is optional.

The organizing move for exam purposes is to attach each case to a step in the litigation sequence: can this court hear this case (jurisdiction), which law governs (Erie), did the complaint survive (pleading), what can each side get and prove (discovery, summary judgment), who is bound (preclusion, joinder).

Start with Pennoyer v. Neff, 95 U.S. 714 (1877), for the territorial baseline, then International Shoe Co. v. Washington, 326 U.S. 310 (1945), which replaced presence with 'minimum contacts' such that suit does not offend traditional notions of fair play and substantial justice. Everything after is a fight over what counts as a contact.

For specific jurisdiction, know Hanson v. Denckla, 357 U.S. 235 (1958) (purposeful availment; unilateral activity of the plaintiff is not enough), World-Wide Volkswagen Corp. v. Woodson, 444 U.S. 286 (1980) (foreseeability of the product reaching the forum is insufficient; adds the five-factor reasonableness inquiry), Burger King Corp. v. Rudzewicz, 471 U.S. 462 (1985) (contracts plus course of dealing; reasonableness can defeat contacts only in compelling cases), and Calder v. Jones, 465 U.S. 783 (1984), as narrowed by Walden v. Fiore, 571 U.S. 277 (2014) (the defendant's contacts with the forum, not with a plaintiff who resides there).

The stream-of-commerce problem is Asahi Metal Industry Co. v. Superior Court, 480 U.S. 102 (1987), and J. McIntyre Machinery, Ltd. v. Nicastro, 564 U.S. 873 (2011) — both fractured, neither producing a majority test. Say so on an exam and argue both O'Connor's 'plus' approach and Brennan's mere-awareness approach.

For general jurisdiction, Goodyear Dunlop Tires Operations, S.A. v. Brown, 564 U.S. 915 (2011), and Daimler AG v. Bauman, 571 U.S. 117 (2014), limit it to fora where the defendant is 'at home' — place of incorporation and principal place of business, absent an exceptional case. BNSF Railway Co. v. Tyrrell, 581 U.S. 402 (2017), confirms that massive in-state activity is not enough. Then Mallory v. Norfolk Southern Railway Co., 600 U.S. 122 (2023), holds that consent through a business-registration statute can supply jurisdiction anyway — a live workaround your professor may push on.

Two recent cases control relatedness. Bristol-Myers Squibb Co. v. Superior Court, 582 U.S. 255 (2017), rejects nonresident plaintiffs' claims that do not arise from forum contacts. Ford Motor Co. v. Montana Eighth Judicial District Court, 592 U.S. 351 (2021), holds that 'arise out of or relate to' does not require but-for causation. Also know Shaffer v. Heitner, 433 U.S. 186 (1977) (quasi in rem measured by Shoe), Burnham v. Superior Court, 495 U.S. 604 (1990) (tag jurisdiction survives), and Mullane v. Central Hanover Bank & Trust Co., 339 U.S. 306 (1950), for notice reasonably calculated under the circumstances.

Louisville & Nashville Railroad Co. v. Mottley, 211 U.S. 149 (1908), gives you the well-pleaded complaint rule: an anticipated federal defense does not create arising-under jurisdiction. Grable & Sons Metal Products, Inc. v. Darue Engineering & Manufacturing, 545 U.S. 308 (2005), supplies the narrow embedded-federal-issue category (necessarily raised, actually disputed, substantial, and resolvable without disturbing the federal-state balance), read against Merrell Dow Pharmaceuticals Inc. v. Thompson, 478 U.S. 804 (1986).

For diversity, Strawbridge v. Curtiss, 7 U.S. (3 Cranch) 267 (1806), establishes complete diversity, and Hertz Corp. v. Friend, 559 U.S. 77 (2010), fixes a corporation's principal place of business as its 'nerve center.' Supplemental jurisdiction runs from United Mine Workers v. Gibbs, 383 U.S. 715 (1966) (common nucleus of operative fact) through Owen Equipment & Erection Co. v. Kroger, 437 U.S. 365 (1978), which § 1367(b) codifies, to Exxon Mobil Corp. v. Allapattah Services, Inc., 545 U.S. 546 (2005) (one plaintiff satisfying the amount in controversy can anchor others in a class or joinder posture, but not in the § 1367(b) exceptions).

On removal and venue, Caterpillar Inc. v. Lewis, 519 U.S. 61 (1996), forgives a removal defect cured before judgment; Home Depot U.S.A., Inc. v. Jackson, 139 S. Ct. 1743 (2019), holds a counterclaim defendant cannot remove. Atlantic Marine Construction Co. v. U.S. District Court, 571 U.S. 49 (2013), governs forum-selection clauses through § 1404(a), and Piper Aircraft Co. v. Reyno, 454 U.S. 235 (1981), governs forum non conveniens.

Erie Railroad Co. v. Tompkins, 304 U.S. 64 (1938), overrules Swift v. Tyson and holds there is no federal general common law; a federal court sitting in diversity applies state substantive law. The hard part is the sorting test, and the cases give you three overlapping ones.

Guaranty Trust Co. v. York, 326 U.S. 99 (1945), asks whether ignoring the state rule would significantly affect the outcome. Byrd v. Blue Ridge Rural Electric Cooperative, Inc., 356 U.S. 525 (1958), adds a balance of countervailing federal interests. Hanna v. Plumer, 380 U.S. 460 (1965), splits the analysis: if a valid Federal Rule is on point and directly conflicts, it applies under the Rules Enabling Act; if not, apply the twin aims of Erie — discouraging forum shopping and avoiding inequitable administration of the laws.

Finish with Gasperini v. Center for Humanities, Inc., 518 U.S. 415 (1996) (accommodating state and federal interests on excessive-verdict review), Semtek International Inc. v. Lockheed Martin Corp., 531 U.S. 497 (2001) (the claim-preclusive effect of a federal diversity judgment is federal common law that generally borrows state law), and Shady Grove Orthopedic Associates, P.A. v. Allstate Insurance Co., 559 U.S. 393 (2010), where Scalia's plurality and Stevens's controlling concurrence disagree about when a Federal Rule abridges a substantive right. On an exam, apply Stevens.

Bell Atlantic Corp. v. Twombly, 550 U.S. 544 (2007), and Ashcroft v. Iqbal, 556 U.S. 662 (2009), replace Conley v. Gibson's 'no set of facts' language with a two-step plausibility inquiry: disregard legal conclusions, then ask whether the remaining well-pleaded facts make relief plausible in light of judicial experience and common sense. Note that Swierkiewicz v. Sorema N.A., 534 U.S. 506 (2002), which rejected heightened pleading for employment discrimination, is in tension with them and is still cited.

For discovery, Hickman v. Taylor, 329 U.S. 495 (1947), creates work-product protection, now partly codified in Rule 26(b)(3). Upjohn Co. v. United States, 449 U.S. 383 (1981), rejects the control-group test for corporate attorney-client privilege.

The 1986 summary judgment trilogy is mandatory: Celotex Corp. v. Catrett, 477 U.S. 317 (1986) (a movant without the burden of proof may point to the absence of evidence), Anderson v. Liberty Lobby, Inc., 477 U.S. 242 (1986) (materiality and genuineness measured against the substantive evidentiary standard), and Matsushita Electric Industrial Co. v. Zenith Radio Corp., 475 U.S. 574 (1986) (implausible claims require more persuasive evidence). Scott v. Harris, 550 U.S. 372 (2007), lets a court disregard testimony blatantly contradicted by video; Tolan v. Cotton, 572 U.S. 650 (2014), reins that in.

On the jury right, Beacon Theatres, Inc. v. Westover, 359 U.S. 500 (1959), and Dairy Queen, Inc. v. Wood, 369 U.S. 469 (1962), require legal issues to be tried first, and Chauffeurs, Teamsters & Helpers Local No. 391 v. Terry, 494 U.S. 558 (1990), gives the historical-analogy-plus-remedy test.

Taylor v. Sturgell, 553 U.S. 880 (2008), rejects 'virtual representation' and lists six exceptions to the rule against nonparty preclusion — memorize the list, because it is a clean exam checklist. Pair it with Hansberry v. Lee, 311 U.S. 32 (1940), on due process limits for absent class members.

For issue preclusion, Blonder-Tongue Laboratories, Inc. v. University of Illinois Foundation, 402 U.S. 313 (1971), permits defensive nonmutual use, and Parklane Hosiery Co. v. Shore, 439 U.S. 322 (1979), permits offensive nonmutual use subject to trial-court discretion and four fairness factors. Semtek supplies the choice-of-law rule for the preclusive effect of federal judgments.

In class actions, Wal-Mart Stores, Inc. v. Dukes, 564 U.S. 338 (2011), redefines Rule 23(a)(2) commonality as capacity to generate common answers and bars monetary relief under (b)(2) unless incidental. Amchem Products, Inc. v. Windsor, 521 U.S. 591 (1997), and Ortiz v. Fibreboard Corp., 527 U.S. 815 (1999), police settlement classes for predominance and adequacy. Comcast Corp. v. Behrend, 569 U.S. 27 (2013), requires a damages model matched to the liability theory, and Phillips Petroleum Co. v. Shutts, 472 U.S. 797 (1985), addresses jurisdiction over absent plaintiffs.

Build a one-page chart per doctrine with four columns: case, the rule in one sentence, the fact pattern that triggers it, and the counterargument. On an exam you almost never need facts; you need the rule and the fight. Write 'Under Ford, relatedness does not require but-for causation, so Ford's Montana sales of the same model likely suffice,' not a paragraph about the Explorer.

For citation, use Bluebook Rule 10: case name, volume, reporter, first page, pinpoint, and a parenthetical with court (omitted for the Supreme Court) and year — e.g., Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). In a brief or memo, italicize the case name; in a law review footnote, use small caps only for books and codes, not cases. Very recent Supreme Court decisions may still lack a U.S. Reports page, in which case cite S. Ct.

Do not memorize citations for a closed-book exam unless your professor asks. Case names alone signal command; wrong volume numbers signal the opposite.