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ExpansielLegal Consulting
ApproachWho we serveThe methodHow we workWhat we buildAbout usIn the mediaFAQ
Law FirmsIn-House LegalLaw SchoolsPublic Sector
AssessmentESLet's talk
ES

field: law · tool: ai · standard: rigor

We implement artificial intelligence

We don't sell software. We work alongside you — with strategy and tailor-made builds — to bring AI in without losing the rigor the Law demands.

Assess your AI maturity→Let's talk

Approach

Not a product. An off-the-shelf vendor ally.

We think like an architecture studio: we design the strategy with you and, when needed, we build the tool. Having solved a similar problem elsewhere doesn't make it a catalog — we tailor it to how you work.

  • Tailor-made

    Nothing canned: every implementation is cut to your reality, your data and your clients.

  • With you, not for you

    We design the strategy and build the tool together, step by step.

  • With judgment

    AI assists and accelerates; professional judgment and the final word remain yours.

§

Ius est ars boni et aequi — Law is the art of the good and the fair.

— Celsus

Who we serve

We work with the whole legal world.

Law is practiced on many fronts. Each one has its own page, with use cases cut to its measure.

01

Law Firms

Help your team do more, without losing rigor.

→
02

In-House Legal

Legal at the speed of the business, without losing control.

→
03

Law Schools

Train lawyers who master AI, with judgment.

→
04

Public Sector

Process information at scale, with safeguards.

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§

Res ipsa loquitur — The thing speaks for itself.

The method

Four rungs. One path.

Adopting AI isn't a leap — it's a ladder. We help you climb it rung by rung, at your organization's pace.

From the starting point → to client portals

  1. 01

    Individual productivity

    Everyone works better: drafting, summarizing and researching with AI — with judgment and without risks.

  2. 02

    Knowledge management

    Your organization's knowledge stops living in loose folders: organized, classified and searchable.

  3. 03

    Legal ops

    The operation runs itself: case files and workflows automated end to end.

  4. 04

    Client portals

    Your clients get a different experience: their own digital access to their information and matters.

§

Injustice anywhere is a threat to justice everywhere.

— Martin Luther King Jr.

How we work

Two ways to work with you. Both tailor-made.

01

Strategic advisory & ongoing support

Assessment, roadmap, training and continuous support. We think through which rung to climb, in what order and with what safeguards: responsibilities, information security and billing models.

02

Tailor-made builds

Specialized agents, searchable knowledge bases, review systems with risk scoring. Built on your data and your workflows. A commission cut to your measure — not something canned.

AI-agnostic

We use the best tool for each case — and switch when a better one appears. We never lock you into a single vendor.

  • CopilotCopilot
  • ClaudeClaude
  • ChatGPTChatGPT
  • GeminiGemini
§

Dura lex, sed lex — The law is harsh, but it is the law.

A few examples

What we build.

  • 01

    Review with risk scoring

    Upload a final draft; the AI gives you feedback and a risk score before it goes out. You decide.

  • 02

    Searchable knowledge

    Every piece of work generates its own metadata and feeds your organization's conversational search.

  • 03

    Specialized agents

    Client management, fee recommendations, analysis of your work product. Built for your practice.

MASTER SERVICES AGREEMENT

By and between PROVIDER LLC (“Provider”) and

CLIENT INC. (“Client”), the parties agree as follows:

SECTION FOUR — CONFIDENTIALITY. The parties shall

keep all exchanged information in strict confidence

for a period of five (5) years.

SECTION FIVE — TERM. Twelve (12) months, renewing

automatically unless notice is given.

SECTION SEVEN — BREACH. Delay entitles the Client to

apply an uncapped penalty, per §7.3.

  • Parties identified

    Provider LLC · Client Inc.

  • Clause 4.2 — Confidentiality

    Mutual obligation · 5 years

  • ▲ Risk detected

    Uncapped penalty · §7.3

  • Term: 12 months

    Automatic renewal

§

Res ipsa loquitur — The thing speaks for itself.

About us

We know law, and we know AI.

We come from both shores. From law: work at law firms, university teaching, talks and experience at prosecutors' offices. And from technology: building legal applications — for case law, time tracking, advanced search and information processing, plus contract review, water law and consumer law matters. That mix is what lets us translate AI into the language, the risks and the reality of legal work.

  • · Law firms
  • · Prosecutors' offices
  • · Teaching
  • · Talks
  • · Legal apps
EP

Emilio Pfeffer

Founder · columnist at Diario Financiero and speaker at AWS, UDLA and Argentina Fintech Forum.

LinkedIn ↗emilio@expansiel.com

Art. 19(4)Case 8.421-22Clause 4.2Art. 12Recital 7DL 211Ruling 2019/443Precedent AOpinion 3.110
§

In dubio pro reo — When in doubt, rule for the accused.

In the media

Where we've been.

Diario Financiero
Opinion column

Artificial intelligence: beyond ChatGPT

Read the column↗
Amazon Web Services
Speaker

Gen AI Startup Day Santiago

View event↗
Universidad de Las Américas
University talk

The impact of AI on legal education

Read more↗
Argentina Fintech Forum
Speaker

Argentina Fintech Forum, Buenos Aires

View event↗
§

Da mihi factum, dabo tibi ius — Give me the facts and I shall give you the law.

FAQ

What we get asked before starting.

Straight answers, no fine print. If your question isn't here, write to us.

What about confidentiality?+

It's the first thing we design for. We work under NDAs, define from day one where data lives and who can access it, and your data is never used to train public models. Everything is built on your information, under your safeguards, aligned with data-protection regulation.

Can the AI get it wrong? Who's responsible?+

Yes, it can — any vendor promising otherwise isn't being honest. That's why everything we build is traceable: every answer points to its source so a person can verify it in seconds. AI proposes and accelerates; review and the final word remain with the professional. Professional ethics demands it: verifying before signing can't be delegated to a machine.

Does this replace my team?+

No. AI absorbs the repetitive layer of the work — searching, summarizing, extracting, comparing — and gives your team back time for what truly requires judgment. The teams we've seen perform best aren't the ones that cut headcount, but the ones that do more and better work with the same people.

Which tools do you work with?+

We're agnostic: we use the best tool for each case (Copilot, Claude, ChatGPT, Gemini, among others) and build custom when the problem calls for it. We don't lock you into a vendor — and if something better appears tomorrow, we switch.

How much does it cost?+

It depends on the engagement: strategic advisory and training work differently from a custom build. The first conversation is free and without obligation — out of it comes an honest read on whether this makes sense for you, and a scoped proposal.

How long until we see results?+

We work with scoped, measurable pilots: weeks, not years. We climb the ladder rung by rung — individual productivity first, then knowledge, workflows and portals — at your organization's pace.

Do I need my data organized before starting?+

No. Organizing knowledge and making it searchable is often part of the work itself. Knowing which problem you want to solve is enough; we build the rest together.

§

In order that power may not be abused, power must check power.

— Montesquieu

The best time to start was yesterday. The second best is this conversation.

A no-obligation conversation to understand your organization and show you, honestly, where AI adds value — and where it doesn't yet.

Book a time

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§

The law is reason, free from passion.

— Aristotle

ExpansielLegal Consulting

AI consulting for the legal world

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