A brief in support of a motion — sometimes called a memorandum of law or memorandum in support — is the document that explains to the judge why the court should grant what the motion asks for. To write one that works, you build it around the legal standard for your specific motion, lay out the relevant facts with citations to the record, apply controlling law to those facts through clearly labeled argument sections, and follow your court’s formatting and filing rules exactly. The motion itself is usually a short, formulaic request. The brief does the persuading. A strong argument filed in the wrong format, past a deadline, or without proper service can be struck before a judge reads a word of it, so substance and procedure both have to be right.
What the Brief Must Contain
Most courts expect the same basic components, though the shorter the brief, the fewer of them you actually need. Before you draft, check your court’s local rules; some spell out exactly what is required and reject filings that omit pieces.
- Case caption identifying the court, the parties, the case number, and the title of the document.
- Table of contents and table of authorities, usually required only in longer briefs or where local rules mandate them. The table of authorities groups every legal source you cite into categories such as cases, statutes, constitutional provisions, rules, regulations, and treatises.
- Introduction or summary of the argument stating the relief you seek and the core reason the court should grant it.
- Statement of facts, supported by citations to the record.
- Legal argument applying the law to the facts.
- Conclusion, sometimes called a prayer for relief, explicitly stating what you want the court to do.
- Signature block with name, bar number, address, phone, and email.
- Certificate of service confirming that every other party received a copy, with the date and method of delivery.
A five-page brief on a simple discovery motion probably will not need a table of contents. A forty-page summary judgment brief almost certainly will.
Writing the Statement of Facts
The statement of facts is where the argument gets its footing. A judge who does not understand the facts will not be persuaded by the law, however strong it is. This section has to be accurate, complete, and honest, but you still control the order and emphasis, and that is where the framing happens.
Every factual assertion needs a citation to the evidentiary record: the specific deposition transcript, affidavit paragraph, exhibit, or document that supports it. The standard form puts the reference in parentheses right after the assertion, using abbreviations like “(Smith Aff. ¶ 6)” or “(Horn Dep. 99:23–101:5).” Courts routinely disregard factual statements without record citations, and appellate rules explicitly require them.1Cornell Law School. Basic Legal Citation
Do not argue in this section. Judges notice, and it costs credibility. Lead with the facts that matter most, and include unfavorable facts if they are relevant. Opposing counsel will surface them anyway, and handling them yourself is better than looking like you tried to hide them.
Building the Legal Argument
The legal argument is where the brief earns its keep. It is not a research paper presenting both sides evenhandedly. It is an advocacy document that leads with your conclusion and marshals authority to support it.
Match the Motion’s Legal Standard First
Every type of motion has a specific legal standard that the brief has to address head-on. A summary judgment brief has to show that “there is no genuine dispute as to any material fact” and that the moving party “is entitled to judgment as a matter of law.”2Legal Information Institute. Federal Rules of Civil Procedure Rule 56 – Summary Judgment A brief supporting a motion to dismiss argues that the complaint fails to state a plausible claim for relief. Identify the standard early and structure everything around satisfying it.
Use Point Headings That State Conclusions
Each distinct legal issue gets its own section, introduced by a point heading. A good point heading is a full sentence that states both the conclusion you want the court to reach and the reason. “The Court Should Grant Summary Judgment Because the Undisputed Evidence Establishes That Defendant Breached the Contract” tells the judge where the section is going. “Breach of Contract” wastes the slot.
Major contentions take Roman numerals (I, II, III), with sub-headings (A, B, C) underneath. Never use a solitary sub-heading. If you have an “A” but no “B,” fold that content into the main heading; you cannot divide something into one piece.
Structure Each Section With CRAC
Most legal writers use some variation of CRAC inside each argument section: Conclusion, Rule, Application, Conclusion. Lead with the conclusion so the judge knows what you are asking for on that point. State the governing legal rule and cite the controlling statute or binding precedent. Apply the rule to your facts, element by element. Restate the conclusion.3CUNY School of Law. Drafting Briefs to a Court
The rule portion should rely on mandatory authority: statutes that govern the issue and decisions from higher courts within the same jurisdiction.4UCLA School of Law Hugh & Hazel Darling Law Library. Mandatory v. Persuasive Authority When binding authority is thin, persuasive authority from other jurisdictions can supplement, but anchor the argument in mandatory sources first.
Handle Adverse Authority Head-On
If opposing counsel will cite a case that undercuts your position, address it yourself. The technique is called distinguishing: identify the material factual or legal differences between the unfavorable case and your situation, and explain why those differences mean the case does not control here. Acknowledging adverse authority and dismantling it strengthens credibility. Pretending it does not exist almost never works, and in many jurisdictions attorneys have an ethical obligation to disclose directly adverse controlling authority to the court.
Attaching Evidence the Court Can Actually Consider
A brief is typically filed alongside exhibits, affidavits, or declarations that support the factual assertions. Evidence has to be properly presented, or the court cannot consider it.
Under Federal Rule of Evidence 901, the party offering an item of evidence must “produce evidence sufficient to support a finding that the item is what the proponent claims it is.” The most common method is a witness with personal knowledge — an affidavit from someone who can testify that a document is genuine, that they wrote the email, or that the photograph accurately depicts a scene. Other accepted methods include distinctive characteristics of the document itself, expert comparison, and evidence describing an electronic system that produces accurate results.5Legal Information Institute. Federal Rules of Evidence Rule 901 – Authenticating or Identifying Evidence
Some categories of evidence are self-authenticating under Federal Rule of Evidence 902 and skip the process entirely, including certified copies of public records, official government publications, newspapers, acknowledged documents, and certified records generated by an electronic process. A certified court record attached to your brief generally does not need a separate authenticating affidavit.6Legal Information Institute. Federal Rules of Evidence Rule 902 – Evidence That Is Self-Authenticating
Authentication is a necessary condition for admissibility but not a sufficient one. Even authenticated evidence can still be excluded on other grounds, such as hearsay or relevance.
Formatting the Document
Courts are particular about how briefs look, and the rules are mandatory. A formatting violation can get the brief rejected at the clerk’s office before any judge sees it. Requirements come from a mix of federal, state, and local court rules, and they vary enough that you should never assume rules from one court apply in another. Some conventions do run across most courts:
- Typeface and font size. Most courts require at least 12-point font in a conventional style such as Times New Roman, Book Antiqua, or Palatino Linotype. The U.S. Supreme Court requires the Century family in 12-point with at least 2-point leading between lines.7Legal Information Institute. Supreme Court Rule 33 – Document Preparation
- Line spacing. Double-spacing is the common requirement, with single-spacing generally allowed only for block quotations and footnotes.8Kansas Judicial Branch. Rule 6.07 – Format for Briefs
- Margins. The Supreme Court requires at least three-quarters of an inch on all sides for booklet-format documents; many lower courts set the minimum at one inch.7Legal Information Institute. Supreme Court Rule 33 – Document Preparation
- Page and word limits, which come from local rules and vary by court and motion type. A common cap for dispositive motions like summary judgment is around 25 pages or roughly 10,800 words. Nondispositive motions often face tighter limits of around 10 pages or 4,300 words. Reply briefs typically get half the space of the opening brief.
- Citation format. Most federal courts expect Bluebook citations. Some state courts have their own guides. The Bluebook is the de facto standard, and deviating from it looks unprofessional.
Filing, Serving, and Meeting Deadlines
Two procedural steps happen once the brief is finalized: filing with the court and serving every other party.
In nearly all federal courts and most state courts, filing is done electronically through the Case Management/Electronic Case Filing (CM/ECF) system. E-filing is mandatory for attorneys in most federal districts. Documents must be submitted as text-searchable PDFs. File size limits vary; some courts allow documents up to 60 megabytes and require anything larger to be split. Pro se litigants are sometimes exempt from mandatory e-filing, though many courts encourage electronic submission.
Service means providing a copy of the brief to every other party or their attorney of record. When you file through CM/ECF, the system automatically generates a notice of electronic filing that constitutes service on any attorney registered in the system, and no separate certificate of service is required. When service is made by mail or hand-delivery, you must file a certificate of service stating the date, method, and address of delivery.9Legal Information Institute. Federal Rules of Civil Procedure Rule 5 – Serving and Filing Pleadings and Other Papers
In federal trial courts, a written motion and notice of hearing must be served at least 14 days before the hearing date, with supporting affidavits served together with the motion. Opposing affidavits must be served at least 7 days before the hearing. The opposing party’s brief deadline and any reply deadline come from local rules or the court’s order.10Legal Information Institute. Federal Rules of Civil Procedure Rule 6 – Computing and Extending Time; Time for Motion Papers
Two counting rules trip people up. If the last day of a deadline period falls on a Saturday, Sunday, or federal legal holiday, the deadline extends to the next business day. If service was made by mail or certain other non-electronic methods, 3 additional days are added to the response period.10Legal Information Institute. Federal Rules of Civil Procedure Rule 6 – Computing and Extending Time; Time for Motion Papers Miss a deadline and you may lose the right to file at all. Build in a buffer.
Appellate motion briefing runs on a different clock, with shorter response and reply windows under the Federal Rules of Appellate Procedure. If your brief is at that stage, check the appellate rules rather than assuming the trial-court timeline applies.
What Happens If You Get It Wrong
Courts have real enforcement tools for briefs that break the rules or misrepresent facts and law.
Federal Rule of Civil Procedure 11 requires that every brief filed with the court be backed by a good-faith investigation. By signing, the attorney or self-represented party certifies that the legal arguments are “warranted by existing law or by a nonfrivolous argument for extending, modifying, or reversing existing law” and that the factual claims “have evidentiary support.” Violations can result in sanctions including monetary penalties, payment of the opposing party’s attorney fees, or non-monetary directives, and the sanctions must be “limited to what suffices to deter repetition.”11Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions
Procedural non-compliance carries its own consequences. A brief that violates page limits, misses formatting requirements, or is filed late can be stricken, meaning the court treats it as though it was never filed. At the trial level, a motion filed without a properly supported brief may simply be denied. Courts enforce these rules even when the underlying argument has merit.
If You’re Filing Without a Lawyer
Self-represented litigants are held to the same procedural rules as licensed attorneys. Courts will often read your filings more generously in terms of legal sophistication, but formatting, deadlines, and service still have to be right, and the substantive standards do not change.
A few things worth keeping in mind. Affidavits should contain only facts and procedural history, not legal argument; save the analysis for the brief. Check every case you cite to make sure it has not been reversed or overruled, because citing bad law damages credibility fast. Free legal research is available through law libraries and government websites when paid databases like Westlaw or Lexis are out of reach. If opposing counsel cites a source only available through a paid database, they are generally required to provide you with a copy. And file motions only when necessary. Rule 11 sanctions apply to self-represented parties too,11Legal Information Institute. Federal Rules of Civil Procedure Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions and a single well-founded brief will serve you better than a stack of filings that dilutes your strongest points.