This guide gives you a practical, beginner‑friendly way to use Perplexity to help with real cases: reviewing documents, preparing cross‑exams, and stress‑testing arguments.

Important Disclaimer: I am a digital forensics expert, not an attorney.

This guide describes technical workflows for using AI tools (including Perplexity) in litigation support. It is not legal advice, ethics advice, or billing guidance. Attorneys must apply their own professional judgment and consult ABA Formal Opinion 512 and any applicable state or local ethics opinions regarding confidentiality, supervision, billing, and other professional‑responsibility issues.

Note: These workflows are written specifically for Perplexity's interface, pricing, and security model. Other tools (for example, model‑specific interfaces built around GPT, Claude, or Gemini) can support similar workflows, but each would require its own tailored guide covering that platform's plans, settings, and limitations so that attorneys can properly evaluate confidentiality, retention, and ethics considerations.

1. What This Guide Does for You

This guide gives you a practical, beginner‑friendly way to use Perplexity to help with real cases: reviewing documents, preparing cross‑exams, and stress‑testing arguments.

It is designed to be compatible with modern ethics guidance such as ABA Formal Opinion 512, which discusses how generative AI intersects with duties of competence, confidentiality, candor, supervision, and fees.

You can think of Perplexity as a very fast junior associate: excellent at drafts and spotting issues, but its work must always be verified against primary sources (records, Westlaw, Lexis, dockets).

2. Why Perplexity Was Chosen for This Guide

Perplexity was selected as the reference platform for this guide because:

It offers access to multiple top‑tier models in one interface, so attorneys can use a single workflow across different underlying LLMs without constantly switching tools.
Its Enterprise Pro and Enterprise Max plans are designed for organizations, with features like organization‑level "no training on your data," admin controls, and security practices that align more closely with law‑firm expectations than consumer chat tools.
Its file‑analysis and "Spaces" structure make it straightforward to build case‑specific workspaces and reusable strategy environments, which map well to how litigators already think about "case files" and "war rooms."

These characteristics make Perplexity a practical example platform for attorneys who want to move from ad‑hoc prompts to consistent, repeatable trial‑support workflows.

3. Step 1 – Pick the Right Perplexity Plan

You have three realistic options.

This guide is written assuming Enterprise Pro for work involving real client data.

First, go to Perplexity.com

3.1 The three main plans

Plan: Pro (individual)
Price: About 20 USD/month
Best for: Experimenting, personal research, and lower‑risk tasks
Key points: Strong models and file analysis, but no enterprise admin controls or organization‑level data‑governance features.
Plan: Enterprise Pro
Price: 40 USD/month per seat or 400 USD/year
Best for: Solo lawyers or firms working with client files
Key points: All Pro features plus enterprise security, admin, SSO, internal knowledge, and an organization‑level "no training on your data" design.
Plan: Enterprise Max
Price: 325 USD/month per seat
Best for: Heavy‑usage litigators and litigation teams
Key points: Same protections as Enterprise Pro, with much higher limits and additional capabilities.

Practical note: For real client work (pleadings, discovery, PHI, trade secrets), many firms will prefer Enterprise Pro, even for a solo attorney, because it adds enterprise‑grade security, admin control, and data‑use protections.

3.2 Sample policy language (for attorneys to adopt or adapt)

"For live client matters, our firm uses Perplexity Enterprise Pro (40 USD/month per attorney) so that AI‑assisted work happens under enterprise‑grade security, SOC‑aligned controls, and an organization‑level 'no training on our data' design."

4. Step 2 – Set Up Your "Lawyer‑Ready" Account

4.1 Solo or small‑firm setup

Visit the Perplexity Enterprise pricing page and create an Enterprise organization.
Purchase at least one Enterprise Pro seat (40 USD/month or 400 USD/year).
Assign that seat to your work email (for example, you@yourfirm.com).

Once you've done this, Perplexity treats you as an organization, even if there is only one lawyer using it.

4.2 Turn on basic safety defaults

Check data‑use and retention

In your Enterprise settings, configure retention to match your normal file‑retention approach (for example, keep threads while the case is active, allow deletion) and confirm that Enterprise data is not used to train models—this is part of the Enterprise Pro design.

Use only your work account

Upload client information only from your Enterprise work account, not from a personal or non‑Enterprise account.

Ethics context: ABA 512 and related guidance stress that lawyers must understand how AI tools handle data and make "reasonable efforts" when selecting and configuring them; this setup helps support that analysis.

5. Step 3 – Build Your "Trial Strategy Partner" Space

This is your persistent strategy Space that interviews you before helping and then plays the role of adversary, witness, or judge.

5.1 Create the Space

In Perplexity, click "Spaces."
Create a new Space named "Trial Strategy Partner."

5.2 Paste these instructions

"You are an expert Legal Persona Architect.

Objective: Simulate specific legal actors (adversaries, deponents, or judges) for strategy practice.

Protocol: You MUST interview me one question at a time before acting. Ask:

Adversary Type (e.g., 'Aggressive Plaintiff Attorney', 'Difficult Eyewitness', 'Skeptical Trial Judge').
Jurisdiction & Legal Standard (e.g., 'California, pure comparative negligence').
Opponent Style (e.g., 'Reptile Theory tactics', 'Hyper‑technical on hearsay').
Key Case Facts (two‑paragraph summary of the dispute).
Constraints (ethical, confidentiality, or court‑rule limits for the simulation).

Activation: Only after I answer these will you adopt the role. Challenge my logic and expose weaknesses in my position. Do NOT flatter me; your primary duty is to stress‑test arguments so that any resulting drafts can be refined and verified before use."

For trial prep, start new sessions inside this Space so you don't have to re‑enter the rules.

6. Step 4 – Create a Digital Case File (Per Case)

Think of each case as its own AI‑readable notebook.

6.1 Make a case Space

For each matter:

Create a new Space, for example: "Doe v. Smith – Case File (Confidential)."
Upload key materials:
Pleadings: Complaint, Answer, major motions.
Discovery: Depositions, interrogatory responses, key document PDFs.
Expert and official records: Police reports, medical records or summaries, accident reconstruction, etc.
Opposing counsel style: Non‑confidential examples of their briefs or transcripts, if helpful.

Enterprise‑level Perplexity keeps your organization's data within its security perimeter, with encryption and an organization‑level "no training on your data" design.

7. Step 5 – Workflows You Can Use Today

Here are plug‑and‑play prompts you can run in your case Space (and, when appropriate, together with your Trial Strategy Partner Space).

7.1 Inconsistency check

"Review the deposition and prior statements in this Space. Identify at least three factual inconsistencies or tensions in the witness's story. Quote each passage and provide a pinpoint cite (document and page/line)."

7.2 Cross‑examination builder

"Now, acting as opposing counsel, draft a cross‑examination that uses those inconsistencies to challenge the witness's credibility. Use short, leading questions and keep each question tied to a specific cited passage."

7.3 Gap analysis

"Review all discovery responses and reports in this Space. List five areas where the evidence is missing, weak, or untested for my primary theory of the case. For each area, suggest a specific follow‑up (document request, interrogatory, RFP, or deposition topic)."

7.4 Chronology with citations

"Create a timeline of key events in this case. For each event, include the date, a one‑sentence description, and a citation to the document and page/paragraph where that fact appears."

8. Step 6 – Safety Rules to Keep in Mind

Use these as practical guardrails:

Use an appropriate account. For work involving client files, many firms will prefer Enterprise Pro at 40 USD/month (or Enterprise Max) under a work email, rather than a free or individual non‑Enterprise account.

Treat AI output as a draft. Always confirm cases, statutes, rules, and key facts in primary sources (Westlaw, Lexis, official dockets, original records) before using them in any filing or client communication.

Control what you upload. Upload only what you need for the task. Avoid unnecessary client identifiers and follow your firm's confidentiality and retention policies when sharing anything with an AI tool.

Ask it to be tough, not nice. If Perplexity is too agreeable, you can say: "Do not agree with me. Your job is to find weak points in my argument and explain why they are weak." This encourages critical, adversarial feedback instead of flattery.

Lars Daniel

AI Workflow Guide for Attorneys