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CODIAC
Landlord tool

Create and check a rental contract, legally sound under current BGH case law.

Upload an existing contract or create a new one, optimise the clauses in a few steps, download it as a PDF or have it signed digitally. Residential or commercial, fixed-term or open-ended. Powered by the DIMA platform, under your brand.

Under §§ 535 ff. BGB · Clauses at current BGH standard · Delivery with identity check and eSignature
How it works

Two paths, one legally sound contract.

1
Upload or start fresh
Upload an existing contract and all details are read automatically, no tedious retyping. Or start from scratch without a template.
2
Answer a few questions
Residential or commercial, fixed-term or open-ended, with or without an index clause.
3
Optimise the clauses
The tool checks every clause against current BGH case law and flags risks.
4
Send as PDF or digitally
A print-ready PDF or digital delivery to the tenant with identity check, credit check and eSignature.

What happens technically.

When you upload an existing contract, the tool reads the details and takes them over. It then checks the clauses against current BGH case law, for example on cosmetic repairs, notice periods, stepped and index rent, and proposes legally sound wording.

The result is a print-ready PDF, optionally with digital delivery straight to the tenant. Your advisers can review and supplement it before output.

Delivery & checks to the tenant
  • Identity check: the tenant's identity is verified.
  • Credit check (SCHUFA): optional credit query directly within the flow.
  • eSignature: the document goes to the tenant digitally and is countersigned and checked in a legally sound way.
Legal basis: §§ 535 ff. BGB (rental contract), current BGH case law on clauses, for example cosmetic repairs and index rent.
Secure and fast

From draft to signature.

BGH
clauses checked against current case law, risks flagged.
2 paths
upload an existing contract or create a new one without a template.
eSign
digital delivery with identity check, credit check and eSignature.

Frequently asked questions about rental contracts.

Is the rental contract created legally sound?
Yes. The contract is based on §§ 535 ff. BGB and the clauses are checked against current BGH case law, for example on cosmetic repairs, notice periods, stepped and index rent. Your advisers can add details before output.
Can I upload an existing rental contract?
Yes. You upload the existing contract, all details are taken over automatically and the clauses are optimised for current case law through a few targeted questions. No tedious retyping.
Does the tool work for residential and commercial use?
Yes. Residential or commercial, fixed-term or open-ended, with or without an index clause, the tool adapts the contract to the specific situation.
Can I send the contract directly to the tenant?
Yes. Delivery is digital, with an identity check, optional credit check via SCHUFA and a legally sound eSignature. The document is countersigned and checked automatically.
Who is the tool for?
For private and commercial landlords, property managers and members of owner and landlord associations such as Haus & Grund. It runs as a self-service under your own brand.

Offer rental contracts as your own service.

We'll show you the tool live and set it up under your brand.