Custom Software Development for Legal

Custom platforms for law firms and legal tech: practice management, document automation, e-discovery and clause libraries that respect privilege and the LexNET reality.

What Legal Software Delivers

• Time capture that does not interrupt the lawyer: Legal buyers are mid-sized firms that have outgrown a Word-template-and-Excel-billing setup, in-house legal departments at corporates that want to stop paying outside counsel for routine work, and legal tech founders building products for clauses, e-discovery or compliance. The common pain: the document is the asset, the time-entry is the revenue, and yet the tools most firms use treat both as an afterthought. We build software where time capture is invisible, document templates assemble themselves and the audit trail of who-edited-what-when is forensic-grade. We stay clear of giving legal advice: we build the tools that lawyers use to give it.
• Document automation with real templates: Question-driven assembly with conditional clauses, multi-language clause libraries, version control with redlines, and Word/PDF export that preserves the firm's exact formatting. We build clause libraries together with the firm: the IP is yours, not ours.
• E-signature and e-notary done legally: Integration with Signaturit, DocuSign, Logalty and Lleida.net for qualified electronic signatures under eIDAS. Long-term archiving (PAdES-LTV, ArchiSig) so signatures stay valid past the certificate expiry. We have set up flows that have been challenged in court and held up.
• LexNET, MyXML and judicial e-filing: Direct integration with LexNET (Spanish Ministry of Justice), the autonomous-region e-filing systems (Avantius in Aragón, ADRIANO in Cantabria), and the European e-CODEX network for cross-border procedures. Filings happen from the practice management tool, not from a tab in the browser.
• E-discovery that scales to millions of documents: OCR pipelines (Tesseract, AWS Textract, Azure Document Intelligence) for scanned discovery sets, full-text search with legal-aware tokenisation, predictive coding using domain-tuned embeddings, privilege detection that catches attorney-client communications even when names are misspelled. We have processed multi-million document sets without sending the data outside the firm's tenant.
• Client portal and matter visibility: Secure client portal where corporates see the status of every matter, key documents, fee burn against budget and upcoming deadlines. Stops the daily 'any update?' email loop and tightens the relationship with the GC who hires you.

How We Build Your Legal Software

1. Practice area mapping: Litigation, M&A, employment, IP, real estate: each one has a different document, time and billing pattern. We map per area instead of forcing a single workflow.
2. Privilege and confidentiality boundaries: We diagram which data leaves the firm under what circumstances. Walls between matters where there is conflict potential, redaction zones, third-party access timeouts.
3. Templates and clause library co-build: We sit with the partners who own each template and convert their know-how into reusable clauses. This is where most of the value lives, and most projects under-invest in it.
4. Billing and trust accounting: Hourly, fixed-fee, success-fee, capped, blended: we build the billing engine that handles them all, plus trust account separation under colegio-de-abogados rules and IOLTA in the US.
5. Security audit and pen test: Mandatory pre-launch external pentest, plus social-engineering tests on the team: law firm breaches usually start with a partner clicking a phishing link, not with an injection bug.
6. Phased rollout by practice group: We launch with one practice group, get a real billing cycle of usage, then expand. Lawyers do not change tools mid-trial.

High-performance stack used by global leaders

React/Next.js/Angular on the frontend and Java 21 + Spring Boot + PostgreSQL 14 on the backend: the same stack that BBVA, ING, and Netflix use for their security and performance.

Legal Software: FAQ

How much does it cost to build a legal software product?

A focused practice management tool for a 20-lawyer firm typically lands €50,000-€110,000. A full platform with document automation, billing, client portal and e-filing runs €120,000-€280,000. A legal tech product (e-discovery, contract review, clause IP) usually starts at €150,000 and scales with the ML scope.

How long does implementation take?

A first usable practice management tool in 10-14 weeks. A full platform takes 5-8 months. Migrating an existing matter database adds 4-8 weeks depending on data quality, and law firm data is rarely clean.

Are you familiar with attorney-client privilege and confidentiality rules?

Yes. The Spanish Ley 1/1985 LOPJ and the Estatuto General de la Abogacía provisions on secret profesional, the equivalent attorney-client privilege rules in US states (we focus on California, New York, Texas), the EU regulation on cross-border privilege when communications travel through cloud infrastructure. We design the system to never accidentally expose privileged content to third parties, including ourselves.

Can you integrate with LexNET, DocuSign or our practice management?

Yes. LexNET, the autonomous filing systems, e-CODEX. Signaturit, DocuSign, Adobe Sign, Logalty, Lleida.net for signatures. Practice management: Aranzadi Lex, Sepín, Iberley, vLex, Lefebvre. International: Clio, Smokeball, MyCase, PracticePanther. Billing/accounting: A3 Asesor, Sage, Holded.

How do you handle data residency and matter privacy?

EU client data stays in EU regions, with the option of EU-sovereign cloud (OVH SecNumCloud, Outscale 3DS) when there is institutional client requirement. Document storage is encrypted with envelope encryption keyed per matter so a stolen storage volume reveals nothing. We sign confidentiality agreements that go beyond GDPR DPA requirements.

Can you build AI-assisted contract review?

Yes. We build clause-extraction pipelines on domain-tuned models, with confidence scores and citations to the exact source location. The lawyer always reviews: we make the review faster, not autonomous. For sensitive work we deploy the model self-hosted on the firm's infrastructure so contracts never leave the building.

Do you handle conflict checks?

Yes. We build conflict-of-interest engines that match new clients and matters against the existing party graph (parties, related entities, beneficial owners) using fuzzy matching tuned for legal-name variants. The check runs in seconds and sends the partner the rationale, not just a yes/no.

What about know-your-client and AML for law firms?

We build KYC flows aligned with the Ley 10/2010 obligations on lawyers (which apply when lawyers participate in real estate, M&A or fund transactions): ID verification, beneficial owner identification through Registro Mercantil and equivalents, sanctions screening, ongoing monitoring, SAR generation in the format SEPBLAC accepts.

Do you work with clients globally?

Yes. We work fully remote with clients across Spain, Europe, the US and LATAM. Time zones, video calls and live demos at every milestone.