Running a small law firm means doing the legal work and everything a large firm has whole departments for. Every hour spent on routine drafting is an hour away from clients.
Sebastian Korts and his ten-person team at Steuerrecht.com in Cologne handle complex tax cases, financial analyses and litigation.
What Steuerrecht.com did
According to an OpenAI customer story, the firm chose ChatGPT Business to support GDPR compliance and because the product does not train on customer data. Korts explains why: "We are legally bound to confidentiality. This isn't optional, it's in the law. Security was the deciding factor."
The firm built a portfolio of text modules and contract templates it can access instantly, and uses custom GPTs for routine contracts. Korts says: "Compared to traditional methods, I personally save up to ten hours of work per week thanks to ChatGPT." OpenAI also reports faster research and drafting in several examples. These are vendor-published figures.
What it already gives the business
The firm has turned its own best wording into a shared, reusable base. A template written once by an experienced lawyer now helps on every similar matter.
It also chose its tool by the rule that matters most in its profession, confidentiality, before looking at features.
The ExValu perspective, a hypothesis
Where a Company Brain could take it next
Templates carry the wording. The judgment sits with the lawyers: which clause fits which client situation, how a tax office reacted last time, which argument worked in court.
A Company Brain could link that experience to the templates, so a new associate knows when to use which module and why. That is our hypothesis, and it would need the same confidentiality standard the firm already applies.
What an owner and a buyer would look for
Track drafting time per document, review corrections and how much routine work junior staff can complete alone.
For a buyer of a professional firm, documented templates with usage notes and an AI setup that respects professional secrecy and GDPR reduce the risk that quality leaves with one lawyer.
The problem behind this case
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About this analysis
* The image is AI-generated and does not show Steuerrecht.com staff. The facts and figures on this page come from the published source named below.
This is an independent ExValu analysis of a published case. Facts, figures and names are as reported in the source below, which our team checked on October 12, 2026. The ideas for next steps are our own perspective and make no claim about conditions inside Steuerrecht.com. To request a correction or removal, write to [email protected].
Primary source: Vendor customer story, OpenAI, October 2025. Available at openai.com/index/steuerrecht.