Estudio Lerer for Companies
Legal counsel for small and midsize companies, with predictable scope and fees, organized matter memory and an accountable lawyer.
Explore the offer for companies →Argentine Legal Platform
The analysis that takes your senior partner an afternoon could be ready before the file is opened.
JustitIA does more than tell you what the law says. It tells you what it means for the matter on your desk: which clauses are missing, how opposing counsel would attack your position in litigation, and which precedents weigh against it. Senior judgment within a traceable, reviewable, tenant-governed workflow.
Two verticals · one shared architecture
The same infrastructure. Two clearly separated professional relationships.
JustitIA Professional Back Office
Institutional capacity for lawyers and boutique firms that retain the client relationship, strategy, approval and professional responsibility.
Explore the professional back office →What your firm is losing today without realizing it
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Senior hours spent on routine analysis
Every contract reviewed by a senior associate takes hours. Some of that work requires irreplaceable judgment. The rest should be completed by a tool before the lawyer ever touches it.
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The clause no one read
Unseen risks are the ones that cost the most: the clause left unchanged because no one had time for a deep review, the adverse precedent that was never cross-checked, the argument opposing counsel has already prepared.
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Your accumulated judgment remains outside the workflow
When every query is scattered across consumer tools, the firm loses portability, traceability and institutional learning. JustitIA organizes that judgment in a tenant-governed library.
What changes for your firm
It is not a drafting tool or a case-law search engine. It is the colleague who has already done the analysis when you open the matter.
Without JustitIA
Reviews the contract, identifies the obvious risks and prepares a list of questions for the client
With JustitIA
Opens the contract in JustitIA and receives clause-level risk signals, missing clauses with alternative language ready to insert, and the counterargument opposing counsel would make in litigation. You decide instead of processing.
Without JustitIA
Asks an associate to research Supreme Court case law on a specific point, with results expected in 24 hours
With JustitIA
Case law ranked by authority in real time, with ratio decidendi separated from obiter and a clear indication of whether the doctrine is settled or contested.
Without JustitIA
The first reading of a target company takes two weeks of team due diligence
With JustitIA
Parallel due diligence across five workstreams: contracts, regulatory, labor, compliance and IP. A consolidated output separates deal breakers, negotiable issues and post-closing items so the team can focus where it matters.
Without JustitIA
Prepares for a negotiation using what the team remembers from the file and what the client said in the meeting
With JustitIA
Before the negotiation, an adversarial stress test attacks the position from the perspectives of opposing counsel, the regulator and the press. You arrive having already faced the strongest counterargument.
Without JustitIA
Closes the contract or structure without a systematic view of how it could fail over the next 12 to 24 months
With JustitIA
Legal Stress Test: before signing, a prospective failure analysis asks how an adverse judge might attack it, which clause is most likely to trigger litigation, and how the structure responds under insolvency. The goal shifts from producing the document to testing whether it can withstand the worst case.
Without JustitIA
Due diligence takes days to identify the real issues in the data room, while early drafts remain inventories rather than analysis
With JustitIA
Data-room issue extraction analyzes contracts, corporate records, labor, tax and regulatory matters in parallel, with severity signals. The output is an actionable issue list with verbatim source citations, impact likelihood and proposed mitigation, ready for the negotiating table rather than the archive.
Why is general-purpose AI not enough?
Three operational reasons, not marketing claims.
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Your documents require data governance
For legal documents, pasting text into a consumer interface is not enough. Provider, retention, permissions, context minimization, usage records and matter separation must all be defined. JustitIA organizes that workflow by tenant and makes it visible when an output must be escalated or reviewed before circulation.
2
Professional context is not built in
A useful answer depends on the matter, jurisdiction, available documents, client position and the firm’s judgment. JustitIA works with each tenant’s own library, sources and control records without turning that context into an automatic promise of accuracy.
3
Every output must be verifiable
The value lies not in producing more text but in showing sources, currency, uncertainty, possible omissions and next steps. JustitIA separates drafting, professional review, approval and delivery so that the lawyer retains the decision.
Why the Argentine market is different
The infrastructure no global LLM has built for Argentina.
Many global tools were designed for other markets, workflows and legal sources. JustitIA focuses from day one on Argentine law, civil law, business regulation and professional traceability. For a local law firm, that difference is operational, not cosmetic.
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Current Argentine law, not static text
SAIJ, Central Bank circulars, UIF resolutions and Supreme Court administrative orders. Each rule is classified by volatility: a source that changes daily cannot be treated like one that has remained stable for 30 years. The system distinguishes when it can cite with confidence from when the primary source must be checked before signing.
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JurisRank: authority, not popularity
Each precedent is presented with signals for court hierarchy, recency and doctrinal consistency. The goal is not to predict a judicial outcome, but to rank authority, detect weak sources and require verification before signing.
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Your firm’s judgment compounds
Every reviewed clause, negotiation position and matter context can feed a private tenant library. The system helps reuse judgment while keeping visible what comes from a source, what is inference and what requires human review.
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European and continental civil law
GDPR, the EU AI Act, DORA, NIS2 and EUR-Lex sit in the same platform as Argentina’s Civil and Commercial Code and General Companies Law. Argentine clients with a European nexus, whether a subsidiary, EU-company supplier or foreign-law SPA, do not need to change tools. Civil-law coverage: AR · UY · CL · BR · ES · FR · EU · DE.
Typical use cases
The kind of output produced in the pilot’s first real query.
Cross-border M&A with prior CNDC review
Conditions precedent, a material adverse change clause adjusted to the new regime, signing-to-closing timing with a reverse break fee, and a regulatory risk map. An adversarial stress test before the negotiating session.
Cross-border compliance involving a public official’s beneficial owner
A contract where the beneficial owner is the spouse of an Argentine tax official. Analysis under Law 27,401, the FCPA and SOX, with Siemens and Alstom precedents. Adversarial panel: Anti-Corruption Office, prosecutor, journalist and compliance officer.
Preliminary legal due diligence
Five parallel workstreams: contracts, regulatory, labor, compliance and IP. The consolidated output separates deal breakers, negotiable issues and post-closing items, ready for the team to investigate where it matters.
Bilingual contract review with a US-listed company
Clause-by-clause analysis under Argentine Law 22,250 and New York law. Missing protections are identified with alternative language ready for the next negotiation round.
Ignacio Adrián Lerer
Lawyer · University of Buenos Aires (Honors Diploma)
EMBA · IAE Business School
linkedin.com/in/adrianlererWho is behind JustitIA
30 years on both sides of the table.
Corporate lawyer with more than 30 years advising companies and serving on their governing bodies. Specialized in corporate governance, compliance, strategic risk management and business regulation, with a perspective that combines law and business management.
For 14 years, I served as Legal and Corporate Affairs Manager at Alto Paraná S.A. (Arauco Group), leading multidisciplinary teams responsible for legal affairs, public affairs, human resources, labor relations and fraud prevention. I also served as President of the Argentine Forestry Association (AFoA).
Today I work as legal and business counsel, independent director, legal representative and statutory auditor for companies in manufacturing, forestry, electric power, oil and gas, mining and agribusiness.
JustitIA is not an AI experiment. It is the distillation of that judgment into a tool that any senior lawyer can use from day one.
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2nd Place & Incubation Award — HackAI 2025, Austral University
IntegridAI project: management and training for Integrity Programs under Argentine Law 27,401.
Corporate governanceComplianceM&AStrategic riskIndependent directorStatutory auditorLegal AI
30-day pilot, no commitment
We set up a dedicated instance for your firm. You define the success metrics. At the end of the month, if the numbers support it, we negotiate a formal SLA. If they do not, the pilot closes at no cost.
Ignacio Adrián Lerer · Buenos Aires, Argentina