The documents that start a civil case and frame what it is about - what a complaint must contain, how a defendant answers it, what an admission, denial and affirmative defense each do, counterclaims and cross-claims, and what happens when a pleading is late, deficient or needs to be amended.
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A civil lawsuit begins with a complaint (in some states a petition): the plaintiff's written statement of who the parties are, why this court has jurisdiction, what the defendant did, and what the plaintiff wants. Modern rules require notice pleading rather than proof - a short and plain statement of the claim - but the facts alleged must, taken as true, make each claim plausible and not merely conceivable; a complaint that recites the elements of a claim without facts supporting them can be dismissed before the defendant ever answers. Claims of fraud and mistake must be pleaded with particularity. The complaint is filed with the court, which issues a summons, and the two are served on the defendant under the service rules; service, not filing, starts the defendant's clock.
The defendant's response is the answer, due within a period the rules fix from service. It goes through the complaint's numbered paragraphs admitting, denying, or stating that the defendant lacks knowledge sufficient to admit or deny each allegation - an allegation not denied is deemed admitted - and then sets out affirmative defenses: matters that defeat the claim even if the allegations are true, such as the statute of limitations, release, payment, accord and satisfaction, contributory or comparative fault, waiver, estoppel and res judicata. An affirmative defense not pleaded is generally waived, which is why answers list them generously. The answer may also assert a counterclaim against the plaintiff (compulsory if it arises from the same transaction, and lost if not raised), a cross-claim against a co-defendant, or a third-party complaint bringing in someone who may owe the defendant indemnity or contribution. Instead of answering, a defendant may first move to dismiss on grounds such as lack of jurisdiction, improper venue or failure to state a claim; certain of those defenses are waived if not raised in the first response.
A defendant who neither answers nor moves within the time allowed is in default, and the plaintiff may seek a default judgment. Pleadings can be amended: once freely at the outset, afterwards with the other side's consent or the court's leave, which the rules say should be given freely when justice requires, subject to the scheduling order and to the rule that an amendment adding a claim against a new party relates back to the original filing only in narrow circumstances. Every pleading, motion and other paper is signed by the lawyer or self-represented party, and the signature certifies that the filing is not for an improper purpose and that its contentions have evidentiary and legal support; a filing that violates that certification can result in sanctions after the target has had a chance to withdraw it. Pleadings define the case - discovery, summary judgment and trial are confined to the claims and defenses they contain - and an issue tried without objection is treated as if it had been pleaded.
A person who has been served should get advice within days, not weeks, because the time to respond is short, an unanswered complaint becomes a default, and some defenses are lost if not raised in the very first filing. A plaintiff drafting a complaint without a lawyer should understand that the pleading standard is real: a complaint that names a wrong and asks for money, without facts showing each element of a recognized claim, invites a motion to dismiss and, on the third attempt, dismissal with prejudice. The pleadings also fix the claims for the life of the case, so what is left out at the start is expensive to add later.
Worried about the cost? A lawyer can be hired for one part of a case only (limited-scope representation), may be paid from what a claim recovers (contingency fee), or may be free through a pro bono program or legal aid; a court can also waive its own filing fees.
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Other entries in the same area of law, each written from the same primary sources.