DUOLEXX

For landlords & property managers

Leases every tenant understands — and signs with legal certainty.

Create bilingual tenancy, handover and termination documents under local law, have both sides sign electronically, and manage it all in one place.

In ~5 minutes

to a signature-ready PDF

€14.90

one-off per document · blank template €9.90 · preview without sign-up

Instead of several hundred €

for a lawyer plus certified translation

Any language, one law

The authoritative version under local law plus a translation for the tenant — in some regions the translation is even mandatory.

Sign, don't print

Both parties sign electronically via link, with an integrity proof.

Flat rate, not one-offs

With Pro, unlimited properties and documents — plus an admin dashboard.

35+ document typesEU hostingcryptographically sealed

Relevant documents

Why Pro for you

If you rent out continuously, you don't pay per document: unlimited documents, management, white-label.

Why DUOLEXX instead of just asking an AI?

An AI writes text fast. That doesn't make it legally sound, bilingual and ready to sign. That's exactly the difference.

Grounded in local law

Every document follows the law of the chosen country — researched clauses, not a generic template from the web.

Authoritative language + translation

The binding version in the legal language, alongside an understandable translation. A chat rarely delivers both, soundly, at once.

Verifiable signature

Two-party signature with a SHA-256 integrity proof — provable that both signed the same wording.

Finished, not just text

PDF, signature, archive and share link in one flow — an AI chat only hands back raw text.

1

Choose a template

Choose a region and document type — every template follows local law.

2

Answer questions

Simple questions instead of legalese — your document builds live in two languages.

3

Unlock the PDF

Pay once and you're done: download, archive and share your PDF.

Ready for the next lease?

Start in minutes — bilingual and ready to sign.

Create a document