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Greta.Agency
LegalTech MVP Agency · 2026

Ship your LegalTech MVP in 6 weeks

We build your legal software product — the first working version (called an MVP) — in a fixed 6-week engagement. Document automation, case management, e-signature workflows, legal billing, and secure client portals. Starting from £15,000.

The global LegalTech market exceeded $35 billion in 2024. It grows at over 10% every year. Law firms, legal-ops teams, and access-to-justice platforms all want to replace slow, paper-heavy workflows with purpose-built software. We give founders and legal professionals the fastest path from idea to live, startup-ready product.

6 weeks

Delivery timeline

GDPR-ready

Document security

E-signatures

DocuSign/HelloSign

£15k

Starting price

Why LegalTech MVPs need a specialist build team

Legal software sits at the crossroads of professional rules, data privacy law, and complex workflow logic. Think of it like building a hospital filing system — a misfiled document or a wrong person seeing the wrong file can cause real harm. Most general-purpose agencies build fast, but miss these legal-specific failure points entirely. Working with a specialist MVP development agency means these risks are handled from day one.

GDPR compliance (the European law protecting your users' personal data) is not a checkbox you add at the end. It shapes every decision about where data lives, how long you keep it, who can export it, and how you delete it when asked. Legal products often handle extra-sensitive data too — medical records in personal injury cases, immigration status in asylum cases, financial details in divorce proceedings. These carry stricter rules under Article 9 of GDPR. We know exactly what that means in practice.

We have built LegalTech products for law firm software startups, access-to-justice platforms, and legal-ops tools serving in-house legal teams. We understand the SRA Code of Conduct in the UK, the ABA Model Rules for US-facing products, and the eIDAS framework (the EU rules on electronic signatures). That knowledge is baked into every decision we make, saving you expensive fixes later. You can also compare our approach with InsurTech MVP development — another heavily regulated sector where we apply the same compliance-first thinking.

Quick Start

Ready to build?

Let's bring your idea to life. Fast, affordable, and production-ready.

What your LegalTech MVP includes

Every LegalTech MVP we build is shaped around your specific use case. Below are the 6 core capability areas we deliver in the standard 6-week engagement. Pick the ones that match your product vision — we scope exactly what you need, nothing more.

Contract generation & template automation

Build dynamic document templates with conditional logic, merge fields, and clause libraries. Lawyers define the template structure; clients or junior staff fill in the variables. Output to DOCX and PDF with formatting preserved. Supports multi-party agreements and versioned clause libraries.

E-signature integration (DocuSign / HelloSign)

Native integration with DocuSign or Dropbox Sign (HelloSign) for legally binding electronic signatures. Supports single and multi-party signing sequences, automated reminders, status webhooks, and completed-document archival. eIDAS-compliant for EU signatories.

Case & matter management

Structured matter workspace with client association, document folders, task lists, deadline tracking, and team assignment. Custom matter types map to your practice areas (conveyancing, litigation, employment, etc.). Full audit trail on every matter event for regulatory compliance.

Legal billing with time tracking

Built-in timers with matter association, hourly and fixed-fee billing models, disbursement recording, and invoice generation with firm branding. Stripe integration for online payment collection. Designed to align with SRA accounts rules for client money transparency.

Secure client portal

White-labelled client portal with matter status updates, document upload/download, secure messaging, and e-signature requests. Two-factor authentication, session timeout controls, and granular document permission settings. Clients see only what you share with them.

AI-assisted contract review

GPT-4 powered contract analysis that flags non-standard clauses, missing standard provisions, and potential risk areas. Outputs a structured review report with clause-level annotations. Designed as a first-pass tool for solicitors, not a replacement — reducing review time by up to 60% on standard commercial agreements.

BUILD IT FAST

GDPR-ready by default — not bolted on later

Every LegalTech MVP we build uses encrypted storage, role-based access control, audit logging, and EU data residency as standard. We provide a data processing agreement template and privacy architecture documentation as part of every handover pack.

TALK TO A FOUNDER

Not sure where to start?

Book a 20-minute call. We'll map out your scope, tech stack, and go-to-market plan — for free.

How we build your LegalTech MVP in 6 weeks

Think of this like building a house. You would not start laying bricks without a plan. We do the same — mapping your workflows first, then building in short 2-week chunks (called sprints), then testing everything before handing over the keys. Our B2B SaaS MVP process follows the same structured approach for regulated industries.

  1. 01

    Discovery & legal workflow mapping

    We spend the first week working with you to map your target users' exact workflows — from client intake to matter close. We document the regulatory context (GDPR, SRA, eIDAS), identify integration dependencies, and produce a scoped feature list and technical specification. No feature enters development without a clear acceptance criterion.

  2. 02

    Architecture & compliance-first design

    Our engineers design the data model and system architecture with compliance as a first principle. This includes defining data classification levels, selecting encryption standards (AES-256 at rest, TLS 1.3 in transit), designing the RBAC permission model, and provisioning infrastructure (typically AWS or Azure) in your chosen region.

  3. 03

    Sprint 1 — core workflow features

    Weeks 2–3 focus on the primary value loop: document automation with template engine, matter creation and management, and the user authentication system with MFA. You get a staging environment to review and test at the end of this sprint.

  4. 04

    Sprint 2 — integrations & client-facing features

    Weeks 4–5 wire in the e-signature provider, payment gateway (Stripe), and the client portal. AI contract review capability is integrated in this sprint if included in scope. We also complete legal billing with time tracking and invoice generation.

  5. 05

    Security review, launch & handover

    Week 6 is dedicated to end-to-end testing, OWASP Top 10 security checks, performance optimisation, and production deployment via CI/CD pipeline. We deliver full technical documentation, a data processing agreement template, and a structured knowledge-transfer session.

Who builds a LegalTech MVP with Greta?

You do not need to be a lawyer or a developer to work with us. You just need a clear problem you want to solve in the legal world. Our typical clients fall into 3 groups.

First: legal founders. These are people — often ex-lawyers or legal-ops professionals — who spotted a gap in the market. They know the problem inside out but need a technical team to turn the idea into a real product. We are their MVP agency. We build the first working version (think of it as the “first pancake to test the recipe”) in 6 weeks, so they can show investors and early customers something real.

Second: law firms wanting to productise an internal tool. Many firms have built clever spreadsheets or manual processes that save hours of work. We turn those into proper software products — either for internal use or to sell as a SaaS product (software others pay a monthly fee to use).

Third: access-to-justice platforms. These are non-profits and social enterprises making legal help available to people who cannot afford a solicitor. We have experience building affordable, compliant tools for this sector. We also build similar products in adjacent sectors — see our HealthTech MVP development page for another example of compliance-heavy builds we handle with care.

Legal analytics and reporting dashboards

Many legal software products need a custom dashboard — a screen that shows key numbers at a glance. Think of a dashboard like the instrument panel in a car. It tells you your speed, fuel level, and any warnings without making you dig through the engine.

For a LegalTech product, your dashboard might show: how many open matters you have, how much unbilled time has been logged this week, which documents are waiting for a signature, and which client deadlines are coming up in the next 7 days. We build these reporting dashboards as part of the core 6-week build. No add-on cost.

If you are comparing LegalTech with other regulated industries, you might also find our InsurTech MVP development and B2B SaaS MVP development pages helpful. All three follow the same compliance-first, fixed-price approach.

How Greta compares to other build options — 2026

LegalTech MVP build options compared — 2026
OptionCostTimelineSupport
Traditional agency£80,000–£200,0006–12 monthsExtra cost
Freelancer£20,000–£60,0003–9 monthsYou manage it
No-code tools£0–£500/monthWeeksVery limited
GretaFrom £15,0006 weeksIncluded

BUILD IT FAST

Fixed price. Real timeline. No surprises.

Every LegalTech MVP engagement is scoped and priced before we start. You receive a detailed proposal with feature breakdown, sprint plan, and milestone payments. If scope changes, we discuss it openly — we never issue change orders for work already implied by the brief.

TALK TO A FOUNDER

Not sure where to start?

Book a 20-minute call. We'll map out your scope, tech stack, and go-to-market plan — for free.

Frequently asked questions about LegalTech MVP development

How long does it take to build a LegalTech MVP?+

Greta delivers fully functional LegalTech MVPs in 6 weeks. The timeline covers discovery and architecture design (week 1), core feature development across two sprints (weeks 2–5), and final integration testing, security checks, and production deployment (week 6). More complex products with AI-assisted contract review or advanced integrations may extend to 8–10 weeks.

Is the LegalTech MVP GDPR compliant?+

Yes. Every LegalTech MVP we build uses GDPR-ready architecture by default: data residency in the EU (or your chosen region), encrypted storage at rest and in transit, role-based access control, audit logs for all data access events, and a Privacy by Design approach to user data handling. We also provide a data processing agreement (DPA) template as part of the handover pack.

Which e-signature providers do you integrate with?+

We have production-tested integrations with DocuSign and HelloSign (Dropbox Sign). Both are eIDAS-compliant for EU use cases. We can also integrate Adobe Sign or a self-hosted open-source solution (e.g., DocuSeal) if you have specific cost or data-residency requirements. The integration covers template creation, signer workflows, status webhooks, and signed-document storage.

What does a LegalTech MVP from Greta cost?+

LegalTech MVPs start from £15,000 for a core feature set — typically document automation, a client portal, and basic matter management. Products that add AI-assisted contract review, complex billing workflows, or multi-jurisdictional compliance layers typically range from £22,000 to £40,000. We provide fixed-price quotes after a free discovery call, so there are no surprises.

Can the MVP handle sensitive legal documents securely?+

Absolutely. Document security is a first-class concern in every build. We implement AES-256 encryption at rest, TLS 1.3 in transit, strict RBAC so only authorised users can access specific matter files, and optional client-managed encryption keys. Storage infrastructure is typically AWS S3 or Azure Blob Storage with private bucket policies, pre-signed URLs for temporary access, and versioning enabled.

Sources & further reading

External references cited on this page.

Related services

Ready to build?

Your LegalTech MVP, live in 6 weeks

Book a free 30-minute discovery call. We will review your concept, outline a realistic feature scope, and give you a fixed-price proposal within 48 hours. No obligation, no vague estimates. Ready to speak to our team?

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