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Good law, down to the holding

 
LOIS Legal Research digs deeper to find case law that has weakened, criticized, or quietly undermined the specific holding you plan to rely on, including cases that never cite the original case by name.

Patent-pending technology from Filevine, the platform trusted by thousands of law firms.

  • 90 days free: Start the same day you sign up, no commitment required

  • Rooted in truth: Your cases, your data, your context — not guesses from the internet
  • No hallucinations: Every answer cited to source, every action traceable

We respect your data.

To see how we process and secure it, read our Privacy Policy.

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The gap your citator can't close 

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Your citator is asking the wrong question.

It's checking the case. You're relying on a holding. 

When a later court attacks a separate part of an opinion, a case-level flag tells you nothing. And when a court quietly undermines your point without citing the original, the flag never comes at all.

The result: a warning that doesn't help, or silence when you needed it most.

 

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Not a flag. An answer.

Highlight the exact text you plan to rely on. LOIS searches every publicly available case that treated that specific point — cited or not — and returns a memo that tells you exactly where you stand.

Three steps, one defensible memo

Run your analysis and keep working. The report is ready when you are.

Select

Open any opinion in LOIS and highlight the exact holding or passage you're intending to rely on.

Search

LOIS Legal Research runs citation- and holding-based retrieval simultaneously, casting a net that traditional citators can't.

Review

Receive a structured memo classifying how later courts have treated your specific point, with supporting passages and direct links to each opinion.

LOIS sees what traditional citators miss

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For everyone who signs the brief

Stand behind every cite.

Legal research tools can miss things. LOIS Legal Research gives you a documented, explainable process for verifying your authority so you know exactly what you're standing behind before it goes in a brief.

Patent-pending. Built on Filevine's legal AI platform, LOIS.

 

For every litigator who wants the extra edge.

Whether you're a solo practitioner preparing a motion or a partner at a large firm handling an appeal before the circuit, the cost of citing undermined authority is the same. LOIS Legal Research is built for litigation at every scale.

 

  • Commercial and appellate litigators
  • Plaintiff and defense firms
  • Associates handling brief research
  • Partners doing final authority review
  • Paralegals supporting high-volume litigation

 

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Frequently Asked Questions

What is LOIS?

LOIS (Legal Operating Intelligence System) is Filevine's AI layer purpose-built for legal professionals on top of a decade of structured legal data. Unlike generic AI tools like ChatGPT or Claude, LOIS understands the full web of your practice: clients, cases, deadlines, documents, depositions, and opposing counsel. And unlike legal-specific point solutions, LOIS doesn't just summarize, it takes agentic action inside your practice management system.

How is LOIS different from Harvey, ChatGPT, or other AI tools?
Generic AI tools lack structured legal context. They don't know your cases, your clients, or your deadlines. Legal-specific tools like Harvey are document-layer tools: they work on files you upload, not on live connected case records, and they can't create tasks, set deadlines, or take action inside your system. LOIS is the only AI built natively on Filevine's legal knowledge graph and it acts, not just answers.
Does LOIS work with my existing Filevine data?

Yes, and this is the point. If you use Filevine, LOIS already knows your cases. Every matter, document, deadline, and communication you've ever entered is available to LOIS the moment you activate it. You're already halfway there.

Can I customize LOIS for my firm's workflows?

Yes. LOIS lets you create standardized workflows for your whole team — same input, same quality output, every time. LOIS also learns your firm's style, voice, and prior precedent over time, applying them automatically to drafting and review work.

Can LOIS be used as a standalone legal AI platform?

While LOIS integrates deeply with Filevine to provide matter-aware AI and access to your firm's data, Filevine is not required to use LOIS. Firms, legal departments, and government agencies can use LOIS as a standalone legal AI solution from day one, then connect it to Filevine later if they want additional workflow automation, knowledge management, and case intelligence capabilities.

What if my client needs access to case information?

Filevine offers unlimited guest access through our secure Client Portal. LOIS can read incoming client messages, draft responses, and schedule appointments all from a single prompt. Your clients get 24/7 visibility; your team gets time back.

What security and compliance does Filevine provide?

Filevine is SOC 2 Type II certified, HIPAA-aligned, and maintains a zero data retention policy for AI. Your data stays inside your environment and is never used to train external models.

Gain complete governance over your legal team

It Knows Your Matters

LOIS understands the relationships between every client, case, judge, expert, opposing counsel, deposition, and deadline. No copy-paste. No context-switching. Just answers grounded in your actual data.

It Takes Action, Not Just Notes

Ask LOIS to create a task, set a trial date, calculate pretrial deadlines, or schedule an appointment. One instruction. Done. This is agentic AI and it works, not just talks.

It Works for Every Role

Partners get portfolio visibility. Associates get research and drafting support. Paralegals get instant case status. Case managers get action, all from the same intelligence layer, tuned to each role.

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From Question to Action in One Conversation

LOIS doesn't stop at surfacing information. Once it finds what you need, it acts on it — creating tasks, setting deadlines, scheduling appointments, drafting documents without ever leaving the platform.

Case Manager Subagent Find any case by client name, incident date, or matter detail. Assign tasks, set trial dates, and auto-calculate the full pretrial deadline chain in a single instruction.

LOIS for Word AI-powered redlining, drafting, and review that lives inside every Word document. It knows your firm's voice, style guide, and prior precedent and applies it automatically.

Depositions Real-time transcription with goal tracking and unanswered question alerts during live depositions. LOIS listens so you don't miss a thing.
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Every Action. Every Answer. One Place.

Client Portal Integration

LOIS reads incoming client portal messages and can draft responses, create follow-up tasks, or schedule appointments, all triggered from a single prompt.

 

 

Outside Counsel Coordination

Shared project spaces with two-way document sharing mean no more chasing updates. LOIS keeps everyone in sync without the back-and-forth.

 

 

Compliance & Deadline Chains

Set a trial date and LOIS automatically calculates every pretrial deadline. Set a regulatory deadline and LOIS builds the reminder chain. Deadline misses are malpractice exposure. LOIS eliminates the risk.

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More Billable Hours. Less Administrative Drag.

When LOIS handles the research, the drafting, the case review prep, and the status tracking your attorneys spend more time on work that actually bills. Firms using LOIS report measurable, trackable ROI from day one.
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Be among the first to cite with this kind of confidence

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