Best Contract Software for Law Firms Contract Approval Workflows (the UK, 2026)

A UK law firm has two kinds of approval to manage. There is partner or supervisor sign-off on client-facing drafts before they go out, which protects quality and manages risk on the firm's advice. And there is approval of the firm's own contracts, engagement letters, supplier terms, office leases and the like, where someone has to check value and terms before signing. Both matter, and both are usually run on email and memory. A contract approval workflow brings routing and a record to both: the right partner or manager reviews before anything is sent or signed, and the decision is logged. This guide is about choosing software for that job in a UK law firm. It is general guidance, not legal advice; test any tool on your own documents first, and keep client confidentiality and conflicts in mind throughout any evaluation. ## What a good approval workflow does for a firm For client work it routes a draft to the supervising partner or a second reviewer before release, keyed to matter, value or risk, and keeps that review inside the matter with full version history. For the firm's own contracts it routes by value or type to the right approver, records the sign-off, and hands off to signature. Across both it must respect confidentiality and conflicts through tight permissions, preserve a clean audit trail, and export final documents to Word and PDF with numbering intact. The aim is quality control and a record without slowing fee earners down. ## What UK law firms need specifically Firms live on billable time, so any approval step must be quick and fit the matter-centred way they work. Confidentiality and ethical walls are non-negotiable, so permissions must be precise. Version control matters because drafts iterate heavily. Clean exports are expected. And because many firms already run a document and matter management system, the approval workflow often needs to sit alongside or on top of that rather than replace it. ## How we compared, so you can reproduce it Take 30 of your own documents, a mix of client drafts across matter types and the firm's own contracts, and run the same 30 through each tool's trial configured to your sign-off rules. Score each on routing to the right reviewer by matter, value or risk, version history within the matter, permission and confidentiality controls, audit trail, export fidelity to Word and PDF, how well it sits alongside your document management system, and three-year cost per fee earner. Weight confidentiality, version control and fit with your existing systems highest, because those are where firms differ most from corporates. ## The tools worth testing Most general CLM is built for corporate in-house teams, so weigh each against firm workflow. iManage and NetDocuments are the document and matter backbones many UK firms already run and often carry review and sign-off within the matter; they are quote-priced and usually the natural home for client-work approvals. HighQ (Thomson Reuters) offers workflow and collaboration suited to firms. For the firm's own contracts, corporate CLMs like Ironclad or the UK-founded Juro can manage approval routing and signature well; both handle the firm-as-a-business contracts more naturally than client matters. Adira is an AI legal operating system built on Anthropic's Claude, and law firms are its clearest proof point. It brings an AI drafting studio that outputs a structured clause tree, a per-clause risk view, plain-English clause editing with a diff, files, cases and an activity timeline that record review and keep version history, teams and action items to route a draft for sign-off, and clean export to Word and PDF. Its most relevant claim is its own measured result: 18 law firms already use Adira and rank it highly, and manual contract review and due diligence that took 10 to 12 days came down to under 2 hours with only 2 to 3 rechecks. That is Adira's own figure from live firm deployments, stated as such, not an independent study. Be clear on scope: formal partner sign-off routing may still live in your document management system, so verify how Adira's action assignment and timeline fit your approval process in the trial. Pricing is public and comparable: Practice at 89 US dollars per seat per month billed annually (about 70 pounds, minimum 3 seats) and Firm at 179 US dollars per seat per month billed annually (about 140 pounds, minimum 5 seats), with a 7-day trial; converted figures are approximate, so check Adira's pricing page. Adira is India-first with UK handling architected and expanding, so verify UK depth for your practice areas in the trial. ## How to choose If you already run iManage, NetDocuments or HighQ, your client-work approvals likely belong there, with an AI layer on top for drafting and review. Run the 30-document test, weight confidentiality, version control and fit with your systems, and respect conflicts in any trial. For the firm's own contracts, a corporate CLM or Adira can add routing and signature. ## Where Adira fits for UK law firms Adira is a credible pick where AI drafting and fast review matter and you want pricing you can verify, sitting alongside your matter system. Its 18-firm result is Adira's own measured figure, not independently adjudicated, and no head-to-head against a named competitor is published, so test it against your current approach on the same documents in the trial. See Adira. ## Mistakes that break a firm's approval workflow Sign-off workflows fail in predictable ways in a firm. The most common is too many steps, so a draft waits on reviewers who add no value; route by matter, value or risk so only the right partner or second reviewer sees it. The second is losing the review inside the matter, so the sign-off is not tied to the version it approved; keep review in the matter with full version history. The third is permissions that do not respect confidentiality and conflicts, which is a professional risk. The fourth is no audit trail, so the firm cannot show who approved a draft before release. The fifth is duplicating what your document and matter system already does instead of letting it carry client-work sign-off. The sixth is setting the rules once and never revisiting them. Keep client sign-off quick and matter-centred, and reserve corporate CLM for the firm's own contracts. Fix these and quality control does not cost billable time. ## Bottom line For a UK law firm, the best approval-workflow setup usually keeps client sign-off in your matter and document system, with a corporate CLM or an AI layer like Adira for the firm's own contracts and for faster drafting and review. iManage, NetDocuments and HighQ are the firm-focused backbones, Ironclad and Juro handle firm-as-a-business contracts, and Adira is a credible AI-native option with a directly relevant law-firm track record. Decide on your own documents in a trial that respects confidentiality.