AI for law firms.
Audits and custom builds for the workflows that drain fee-earner hours — conflict checking, intake, billing narratives, document review prep, knowledge management. UK, USA, Europe.
Fee-earner hours,
expensive when used,
expensive when wasted.
A mid-tier law firm — 4 to 40 partners, £2m to £50m equivalent revenue — runs on chargeable hours and partner judgement. Conflict checks, intake forms, billing narratives, and document review prep absorb hundreds of those hours a year. None of them require partner judgement to produce a first draft. All of them currently get one anyway.
The compliance load doesn't help. SRA (UK), state bar associations and ABA rules (US), CCBE and national bars (Europe) — every workflow has to be defensible, auditable, and consistent with the relevant conduct rules. That isn't a reason to avoid AI. It's a reason to install it carefully, within the regulatory framework, with the human checkpoints in the right places.
The question is no longer whether AI fits a law firm. It's where it fits, where it doesn't, and what to ship in what order. That's the work of an audit.
Four workflows we ship.
One we explicitly don't.
Every audit produces a ranked list. These four are the ones that show up at the top across the law firm workflows we have studied. They are high-volume, repetitive, time-sensitive, and do not require partner-level judgement to produce a first draft.
Conflict checking
AI handles: first-pass matching of new matters against existing client and adverse-party records, surfacing potential conflicts before they reach a partner, with clear audit trails for SRA, state bar, or national bar review.
Human keeps: partner final clearance, judgment calls on borderline conflicts
Intake summarisation
AI handles: structured intake from initial client conversations, populating matter records, producing a first-pass case summary, and flagging missing information needed before the file opens.
Human keeps: fee quote, scope agreement, anything client-relationship-sensitive
Billing narrative drafting
AI handles: first-pass billing narratives from time entries, written in the firm’s house style, flagging entries that need partner review before invoicing — the work that gets done late on Friday after a fee earner has stopped wanting to do it.
Human keeps: partner review, final sign-off, anything contentious
Document review pre-flight
AI handles: first-pass triage of disclosure or due diligence document sets — clustering by topic, surfacing relevant clauses against your review checklist, flagging anomalies for fee-earner attention.
Human keeps: legal judgment on every relevant document, all decisions on production
What we don't recommend automating
Partner-level legal judgement. Strategy on contested matters, client counsel, settlement positioning, advocacy. That is the work clients pay senior fees for, and the work the firm is built on. We build around it. We don't build over it. If anyone tells you they are going to “automate the lawyering” you are being sold to.
No law firm case study yet.
The methodology is in the open.
halcroft is currently scoping engagements with UK, US, and European law firms through 2026. Until a law-specific case study is published, the methodology behind every audit is identical — and the closest published proof point is the accountancy practice case study below.
Killing the year-end document chase
A 4-partner UK accountancy practice was losing 24 fee-earner hours a week to manual chase during year-end. halcroft audited the firm, identified document chase as the highest-impact AI fit, built the system in 3 weeks, and protected partner advisory work from automation entirely.
Same methodology, different sector. Map the workflows. Find the ones where AI earns its keep without compromising the judgement clients pay for. Build. Hand over. The law-firm version of this case study is the one we are working on next.
Read the full case study →Three stages.
One funnel.
Same engagement model across all three sectors. The briefing is free. The audit is paid and always in person. Builds are scoped from the audit.
A 45-minute diagnostic call with a written memo within 24 hours. Identifies the highest-impact areas where an audit would add clarity. Honest recommendation on whether to proceed.
Two days on-site with the founder. Written report, prioritised opportunity list, 90-day roadmap. Always in person — anywhere in the UK, USA, or Europe. Travel agreed in advance.
Custom builds scoped from your audit. Conflict checks. Intake. Billing narratives. Document review prep. Delivered in 14 days. Optional management retainer for ongoing support.
What partners ask first.
Compliance is part of the audit, not an afterthought. We work within your existing professional conduct framework — SRA (England and Wales), state bar associations and ABA model rules (US), CCBE and your national bar (Europe) — not around it. Where a workflow can’t be automated within regulatory limits, the audit says so and recommends what to do instead. Conflict checking, intake, billing narratives, and document review prep are areas where we’ve mapped the rules in detail.
Wherever you decide. Typically inside your existing practice management or document management system (iManage, NetDocuments, Clio, Actionstep) or in a dedicated environment configured under your control. halcroft does not host client data on its own infrastructure unless explicitly agreed. The audit decides the specific architecture, accounting for GDPR (UK/EU) or state privacy laws plus SOC 2 framing (US), alongside legal professional privilege.
Privilege is a primary constraint, not a secondary one. We do not route privileged content through external models without explicit authorisation, and we recommend deployment patterns that keep privileged material inside your existing security boundary. The audit explicitly maps which workflows can and cannot include privileged content.
Yes. You own the code, the configuration, and the documentation. We deliver a written runbook and a handover session so your team can operate the system independently. The optional management retainer covers ongoing support — it is not a lock-in.
Mid-tier firms — typically 4 to 40 partners or principals, £2m to £50m equivalent revenue, equivalent in US (boutiques through mid-tier regionals) and Europe. Smaller firms usually do not need an audit; the free briefing is the better fit. Larger firms may need a phased rollout per practice group.
The currently published case study is a UK accountancy practice — not a law firm. The audit methodology is sector-agnostic in principle but tightly mapped to the law firm workflows we have studied (conflict checks, intake, billing narratives, document review). We are actively scoping engagements with US and European firms through 2026.