The story starts in a law firm
Mandato isn't a startup that discovered legal. It's a law firm that loves its craft and got tired of not being able to spend the day on it. Here's the story — short, because we've been busy building.
From complaint to product.
Seven milestones between the day the firm incorporated and the day its software opens to everyone else. Not one of them began as a plan to found a technology company.
- May 2023
Frank & Partners is born
The firm incorporates: boutique, Costa del Sol, clients of twenty-plus nationalities, two working languages. Building software was never the plan.
- February 2024
The diagnosis
Too many hours on work a machine should do: deadlines, documents, communications, invoices. The firm decides to automate properly.
- September 2024
We tried everything on the market
Months evaluating the available software. Nothing combined legal Spanish, English and the Spanish administration in a product you'd enjoy using. The uncomfortable conclusion: we'd have to build it.
- January 2025
The first internal tool
The system that would run the firm's matters goes live. No name, no logo — just a demanding law firm using it every day. The best quality control there is.
- 2025
A year of integrations
LexNET, VeriFactu, AEAT, Catastro, Land Registry, e-signature, burofax, WhatsApp. And AI working inside the matter — not as decoration, but where it genuinely saves hours.
- Q1–Q2 2026
The tool becomes Mandato
What began as an internal system hardens into a product: security, per-firm data isolation, audit trails, vendor-grade VeriFactu compliance, testing. The boring work that makes everything else possible.
- August 2026
Mandato opens to every firm
Three years after opening the firm, the software we built for ourselves is ready for yours.
See the plans and pricing →
What Mandato is already running.
- 90+
active clients managed in Mandato
- 13,000+
documents organised and version-controlled
- 10h/wk
recovered per lawyer on admin work
- 20+
client nationalities served in Spanish or English
Frank & Partners run their whole firm on Mandato. These are their real numbers.
A demanding firm broke it before you could.
Mandato wasn't tested in a demo. It was tested against real deadlines, against the AEAT in August, and against clients who write in four languages. When something didn't work, the firm felt it that same day — which is why it was fixed that same day.
That leaves a mark on the product. Invoicing meets VeriFactu because the firm had invoices to send. LexNET notifications land inside the matter because nobody wanted to watch an inbox. None of it was designed for a screenshot.
Two founders, with a law firm between them.
One lived the problem daily. The other has spent two decades building the kind of system that fixes it. Mandato is what happens when those two people share an office.

A practising lawyer (colegiada) and managing partner of Frank & Partners. Juana lived the problem Mandato solves: every feature in the product passed through her firm first. She brings the procedural rigour — and the veto on anything a real lawyer wouldn't use.
Full profile →
Trained in law and business, with two decades building financial and payments technology. Roberto and his team of engineers, designers and QA translate legal practice into product: if Juana defines the what, they build the how.
Full profile →Mandato is built by the team behind Frank & Partners, the Marbella law firm where the product is used every day.
We built this because we love the law.
We didn't start a software company because practising had bored us. We started because we liked practising and the day kept going somewhere else: counting deadlines twice to be sure, hunting a power of attorney through seven folders, explaining on the phone for the third time where a matter stands.
Every feature in Mandato exists because one of those afternoons became intolerable. And the proof that it works isn't a product metric: it's that Frank & Partners practises more law per week than it used to, with the same people.
That is the only thing we want for your firm. Less admin and more law — more hours on the part that made you a lawyer in the first place.
Developed by Sol Technologies Marbella SL
Try Mandato in your own firm.
Create your account in two minutes and bring your first matter across. No card, no lock-in — you decide at the end of the trial.