Summons

On the MBE, the summons usually hides inside a defective-process fact pattern: the plaintiff serves only the complaint, or a summons missing the clerk’s signature and court seal (both required by Rule 4(a)(1)), then the defendant moves to dismiss. The answer hinges on a clean split—the summons is the paper, while service is the act of delivering it, so a flawed summons is attacked under Rule 12(b)(4) (insufficient process) while flawed delivery is Rule 12(b)(5) (insufficient service of process). Both defenses are waived under Rule 12(h)(1) if omitted from the first Rule 12 response, the classic trap.

Watch the clock swap: a defendant who waives formal service under Rule 4(d) gets 60 days from when the request was sent (90 if sent outside any U.S. judicial district) to answer—not the standard 21—and waiver excuses only service, never personal jurisdiction or venue (Rule 4(d)(5)). Don’t confuse the summons (commands appearance) with the pleadings, which state the substantive claims. Memory hook: the summons summons you to court; the complaint complains about you.