Who Can File a Motion in Court and Who Cannot?

Anyone formally named as a party in a lawsuit can file a motion, either personally or through an attorney, and federal law protects that right directly.1Office of the Law Revision Counsel. 28 USC 1654 – Appearance Personally or by Counsel Certain non-parties can file in narrower situations, and one group that cannot file on its own behalf at all is a business entity. So the short answer to who can file a motion in court is: the parties, their lawyers, and a limited set of outsiders with a recognized stake or a specific procedural reason to be heard.

Parties to the Case

The people and entities named in the court documents have full authority to file motions. In a civil case, that means the plaintiff who brought the suit and the defendant being sued. Family law and some administrative matters use “petitioner” and “respondent” for the same roles. Being named in the initial filings is what triggers the right to participate, and that right runs through nearly every stage of the case.

Whoever files a motion is called the movant. The opposing party gets to file a written response, and the movant can then file a reply.2Legal Information Institute. Federal Rules of Appellate Procedure Rule 27 – Motions That exchange is why both sides have equal filing rights: the judge is supposed to hear from everyone before ruling.

The range of motions available to a party is wide. A defendant might open with a motion to dismiss, arguing the complaint doesn’t state a valid legal claim.3Legal Information Institute. Federal Rules of Civil Procedure Rule 12 – Defenses and Objections Either side can later move for summary judgment, asking the judge to decide the case without a trial because no material facts are in dispute.4Legal Information Institute. Federal Rules of Civil Procedure Rule 56 – Summary Judgment During discovery, a party might file a motion to compel the other side to produce documents. Before trial, motions in limine ask the judge to exclude certain evidence. There’s no cap on how many motions a party can file, though filing meritless ones carries consequences.

Attorneys Filing on Behalf of a Party

When a party is represented, the lawyer drafts the motion, writes the legal argument, and files it with the court. The underlying right still belongs to the party; the attorney is exercising it. That distinction matters because the lawyer owes ethical duties to the client and to the court. Under the ABA Model Rules, a lawyer cannot bring or defend a claim unless there’s a legitimate basis in law and fact for doing so.5American Bar Association. ABA Model Rules of Professional Conduct Rule 3.1 – Meritorious Claims and Contentions

In practice, nearly every contested motion in a civil case is filed by counsel. Courts expect precise formatting, proper citation of authority, and proof that the other side was notified. The attorney’s name appears on the filing, but the request is the party’s.

Filing Your Own Motions Without a Lawyer

If you’re a party without an attorney, you have the same right to file motions as anyone who is represented. Federal law expressly allows parties to handle their own cases, and courts call self-represented parties pro se litigants.1Office of the Law Revision Counsel. 28 USC 1654 – Appearance Personally or by Counsel

Pro se filers are held to the same procedural rules as attorneys. A written motion must state the specific grounds for the request and the relief sought.6Legal Information Institute. Federal Rules of Civil Procedure Rule 7 – Pleadings Allowed; Form of Motions and Other Papers The motion has to be served on every other party. If you file through the court’s electronic system, service happens automatically; if you serve by mail or other means, you have to file a certificate of service with the court.7Legal Information Institute. Federal Rules of Civil Procedure Rule 5 – Serving and Filing Pleadings and Other Papers

Federal courts do apply a somewhat more forgiving standard when reading pro se filings. The Supreme Court has held that pro se documents should be interpreted less strictly than those drafted by lawyers.8Justia Law. Haines v. Kerner, 404 U.S. 519 (1972) A judge won’t throw out your motion just because the terminology is imperfect. That leniency has limits, though. It doesn’t excuse missed deadlines, failing to serve the other side, or arguments with no legal basis.

Businesses Cannot File on Their Own

This surprises many people: a corporation, LLC, or partnership named as a party cannot represent itself. Only individual human beings can appear pro se. The Supreme Court confirmed this in Rowland v. California Men’s Colony, holding that lower courts have “uniformly held” the federal right to self-representation does not extend to corporations, partnerships, or associations.9Library of Congress. Rowland v. California Men’s Colony, 506 U.S. 194 (1993)

A business owner who could represent themselves individually cannot file on behalf of their company. If your LLC gets served with something that needs a response and you don’t have counsel, hire one quickly. The absence of a lawyer is not a reason the court will give you more time, and ignoring the deadline can produce a default judgment against the business. Most state courts follow the same rule.

Non-Parties Who Can File Motions

You don’t always have to be named in a lawsuit to file something. The openings for non-parties are narrower than what parties get, but they come up in real situations.

Intervention

A non-party with a direct stake in the outcome can file a motion to intervene under Federal Rule of Civil Procedure 24. The court must allow intervention when a federal statute grants an unconditional right to join, or when the non-party’s interests could be impaired by the case and the existing parties don’t adequately represent those interests.10Legal Information Institute. Federal Rules of Civil Procedure Rule 24 – Intervention A motion to intervene has to state the grounds and include a pleading laying out the claim or defense.

Courts can also grant permissive intervention when the outsider’s claim or defense shares a common question of law or fact with the main case.10Legal Information Institute. Federal Rules of Civil Procedure Rule 24 – Intervention That’s discretionary, and judges weigh whether letting the newcomer in would delay the case or prejudice the existing parties.

Amicus Curiae Briefs

Organizations and individuals with specialized knowledge but no direct stake can ask to file an amicus curiae (“friend of the court”) brief. In federal appellate courts, the U.S. government and state governments can file amicus briefs without permission. Everyone else needs the consent of all parties or leave of court.11Legal Information Institute. Federal Rules of Appellate Procedure Rule 29 – Brief of an Amicus Curiae The Supreme Court has its own rules for amicus filings, including a process for seeking leave when a party withholds consent.12Legal Information Institute. Supreme Court Rule 37 – Brief for an Amicus Curiae Judges aren’t required to accept these briefs, and the decision is entirely discretionary.

Motion to Quash a Subpoena

If you aren’t a party but receive a subpoena demanding your testimony or documents, you can file a motion to quash or modify it. Under Rule 45, the court must quash a subpoena that doesn’t allow reasonable time to comply, demands privileged information, exceeds the geographic limits of the rule, or imposes an undue burden.13Legal Information Institute. Federal Rules of Civil Procedure Rule 45 – Subpoena The court may also quash a subpoena demanding trade secrets or an unrequested expert opinion. This is one of the most common ways non-parties interact with the court system, and missing the deadline to challenge the subpoena can leave you stuck complying with it.

What Every Filer Has to Do

Who you are determines whether you can file at all, but every filer has to meet the same basic requirements. A written motion has to state the grounds for the request and the specific relief being asked for.6Legal Information Institute. Federal Rules of Civil Procedure Rule 7 – Pleadings Allowed; Form of Motions and Other Papers It has to be served on every other party, through the court’s electronic system or by filing a certificate of service if served another way.7Legal Information Institute. Federal Rules of Civil Procedure Rule 5 – Serving and Filing Pleadings and Other Papers And it has to meet the briefing schedule set by rule or by the individual judge. Local rules vary, so check the ones for your court.

Consequences of Filing a Motion You Shouldn’t Have

Filing a motion carries an implicit promise that it’s legitimate. Under Rule 11, anyone who signs a motion, whether a lawyer or a pro se litigant, certifies that it isn’t filed to harass, delay, or run up the other side’s costs, and that its legal arguments have a real basis in existing law or a good-faith argument for changing the law.14Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions

If a court finds a motion violates those standards, it can impose sanctions on the attorney, the law firm, or the party responsible. Sanctions are meant to deter, not punish, and may include an order to pay part of the other side’s reasonable legal costs caused by the violation, a monetary penalty paid into court, or a nonmonetary directive requiring corrective action.

There is a safe harbor built in. Before filing a sanctions motion with the court, you have to serve it on the other side and give them 21 days to withdraw or fix the problematic filing. If they correct it inside that window, you can’t seek sanctions.14Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions Experienced litigators use the safe harbor as a warning shot; sending the draft often resolves the problem without a hearing.

Filing When You Can’t Afford Court Fees

Court fees shouldn’t lock a party out of their own case. Under 28 USC 1915, any federal court can allow a party to proceed in forma pauperis, meaning without prepaying fees. You submit an affidavit detailing your financial situation, including all assets you possess, and explaining the nature of your case and why you believe you’re entitled to relief.15Office of the Law Revision Counsel. 28 USC 1915 – Proceedings in Forma Pauperis The court then decides whether to grant the waiver. State courts run similar programs, with their own forms and standards.