AI Memorandum Writer
AI Legal Memorandum Writer:
IRAC-Structured Memos
in Under 35 Minutes
The Law Lion writes legal memoranda that follow the IRAC framework — Issue, Rule, Analysis, Conclusion — with verified citations and jurisdiction-specific legal authority. A standard 10-15 page research memo takes 3-4 hours to draft manually. The Law Lion cuts it to under 35 minutes.
4 Common Memo Types in US Legal Practice
A legal memorandum is the most common form of written legal analysis in US practice — used for client advice, internal research, due diligence, and regulatory compliance review.
Client Opinion Letter
Advises a client on their legal rights, risks, or options on a specific issue. Delivered externally. Written to be understood by a non-lawyer.
Internal Research Memorandum
Analyzes a legal question for supervising attorneys or litigation team. Written at an attorney-to-attorney level. Typically more detailed than a client letter.
Due Diligence Memorandum
Analyzes legal risks in a transaction or acquisition target. Covers corporate, regulatory, employment, IP, and litigation exposure.
Regulatory Compliance Memorandum
Analyzes whether a client's operations comply with applicable federal or state regulations. Covers statutory requirements and agency guidance.
How the AI Memorandum Writer Works
Attorneys provide 4 inputs — the legal question, relevant facts, jurisdiction, and audience. The Law Lion returns a complete IRAC-structured memo.
Issue Section
States the legal question precisely, identifying the specific rule or doctrine at issue.
Rule Section
States the applicable legal rule from verified statutes and case law. Cites the controlling authority for the jurisdiction.
Analysis Section
Applies the rule to the specific facts. Addresses counterarguments and qualifications. The section that benefits most from attorney refinement.
Conclusion Section
States the answer to the legal question directly. Qualified appropriately for uncertainty. Actionable for the client or supervising attorney.
Output Format by Memo Type
Drafting time is for first draft only. Attorney review, analysis refinement, and citation verification are always required.
| Memo Type | Audience | Typical Length | Manual Time | With Law Lion |
|---|---|---|---|---|
| Client Opinion Letter | Client (non-lawyer) | 3-6 pages | 2-3 hours | 15-25 min |
| Internal Research Memo | Supervising attorney | 10-20 pages | 3-5 hours | 25-40 min |
| Due Diligence Memo | Deal team / partners | 15-40 pages | 5-8 hours | 40-70 min |
| Regulatory Compliance Memo | Legal team / client | 8-20 pages | 3-5 hours | 25-40 min |
Real Citations
Verified Citations — No Hallucinations
Legal memos are only as useful as their legal authority. A memo that cites a case that does not exist creates malpractice exposure.
Client Delivery
Opinion letters delivered to clients must be accurate. A hallucinated citation in a client memo creates professional liability.
Litigation Support
Research memos used to support motion practice feed directly into court filings. An error in the memo becomes an error in the motion.
Due Diligence Accuracy
Deal teams make acquisition decisions based on due diligence findings. An inaccurate memo affects deal pricing, representations, and indemnities.
The IRAC Framework Applied
IRAC is the standard framework for legal analysis in US practice. Every Law Lion memo follows it exactly.
Issue
States the legal question in specific terms. Not general — precisely framed to the facts and jurisdiction.
Rule
States the controlling legal rule with sourced authority. Covers the statutory rule, the case law interpreting it, and the elements the court applies.
Analysis
Applies the rule to the facts. Works through each element against the specific facts provided. Addresses the strongest counterargument.
Conclusion
Answers the question directly. Qualified with the key uncertainty, but actionable.
Due Diligence Memos: 8 Risk Categories
A full legal due diligence memo for a mid-market acquisition covers 8 risk categories. Manually assembling it takes 5-8 hours. The Law Lion reduces first-draft time to under 70 minutes.
Corporate Governance
Formation documents, organizational structure, and authority review.
Material Contracts
Key relationships, contract terms, and renewal obligations.
Intellectual Property
Ownership, licensing, and IP protection analysis.
Employment
Compensation arrangements, employment agreements, and labor compliance.
Regulatory Compliance
Licensing requirements, agency guidance, and regulatory exposure.
Litigation
Pending or threatened litigation, arbitration, and dispute analysis.
Real Property
Property holdings, environmental exposure, and lease obligations.
Tax Obligations
Tax structure, compliance status, and potential liabilities.
Professional Responsibility for AI-Generated Memos
A memo delivered to a client or used to support litigation is attorney work product. ABA Formal Opinion 512 (2024) confirms AI-assisted drafting satisfies Rule 1.1 when the attorney exercises informed judgment.
Review the IRAC Structure
Confirm the issue is correctly identified, the rule is accurate for the jurisdiction, and the analysis applies the rule to the specific facts.
Verify Every Citation
Confirm each case exists, the holding is accurately stated, and the case remains good law. The Law Lion sources real citations — attorney verification is still required.
Apply Judgment to the Conclusion
The AI produces an analytical conclusion. The attorney decides whether to adopt it, qualify it further, or reach a different conclusion.
Frequently Asked Questions
Yes. Specify 'client delivery' when generating the memo. The Law Lion adjusts tone and language to plain English, avoids excessive legal jargon, and focuses on the practical answer the client needs.
Yes. Regulatory compliance memos are fully supported. The Law Lion pulls applicable federal and state regulatory requirements, identifies recent regulatory changes, and structures the compliance analysis by requirement.
Yes. Upload contracts, corporate documents, regulatory filings, or other source materials. The Law Lion uses the uploaded content to ground the memo analysis in the specific facts of the matter.
Attorney-client privilege and work product protection attach based on the purpose and communication — not the tool used to draft the document. A memo drafted with AI assistance carries the same privilege analysis as a manually drafted memo.
Output length scales with complexity. A standard research memo runs 10-15 pages. A client opinion letter runs 3-5 pages. A full due diligence memo runs 15-40 pages depending on scope.