How to Write a Research Memo Lawyers Can Reuse

Most research memos are written once, read once, and never opened again. The effort that went into them is lost the moment the question comes up on the next matter, because nobody can find the memo or trust that it is still current. A reusable memo is written differently from the start: it answers the question first, shows its working clearly, and states its own shelf life.

Lead with the question and the answer

The reader wants your conclusion, not a tour of your reasoning. Open with the precise question you were asked and your provisional answer in the first few lines. Not "this memo examines the law on…", but "Can the client terminate for the supplier's delay? On the current facts, probably yes, subject to two conditions — set out below." A partner scanning ten memos should be able to take the answer from the top of each and dive into the reasoning only where it matters. Burying the conclusion under three pages of build-up is the fastest way to make a memo unread.

State the facts and assumptions you relied on

An answer is only as good as the facts it rests on, and those facts change. Set out the material facts you assumed and, just as importantly, the ones you did not have. "This assumes the contract is governed by Indian law and the notice was served on 3 March; I have not seen the original agreement." This does two things: it lets the reader see immediately whether your answer survives on their version of the facts, and it protects the memo's reuse — the next reader knows exactly which assumptions to re-check rather than inheriting them blindly.

Give the reasoning, then the authorities — in that order

Explain how you got from the facts to the answer in plain terms, and only then cite the authorities that support each step. Authorities are evidence for your reasoning, not a substitute for it. A wall of quotations with no argument tells the reader nothing about how the pieces fit; a clear line of reasoning with pinpoint citations lets them check your logic and follow the sources when they need to. Cite precisely — case, court, and paragraph — so a reader can verify without re-running your search.

Separate what is settled from what is arguable

A reusable memo is honest about its own confidence. Mark clearly where the law is settled, where it is arguable, and where you are inferring. If there is authority the other way, say so and explain why you think it does not govern. A memo that presents a genuinely uncertain position as settled is worse than useless on reuse: the next lawyer relies on it, the point turns out to be contested, and the whole document's credibility collapses.

Date it and state when it should be rechecked

Law moves. The single feature that separates a reusable memo from a dangerous one is a clear statement of when it was written and what would make it stale — a pending amendment, an appeal, a point where practice is shifting. "Current as of March 2026; recheck if the amendment to the relevant provision is notified." Without this, an old memo gets pulled off the shared drive and relied on as if the law had stood still.

Make it findable

None of this matters if the memo cannot be found when the question recurs. Give it a title that states the question, tag it by topic and matter, and store it where the team looks rather than in a personal folder. The measure of a research memo is not whether it answered today's question — it is whether, eighteen months from now, someone facing the same question finds it, trusts it, and saves themselves the afternoon you already spent. Keeping memos, their sources, and their tags in one searchable place, as a workspace like Juniorlawyer allows, is what turns a one-off answer into something the chamber can draw on again.