Lawyer profile
Frank Diemer
Lawyer (Rechtsanwalt), KNP Dr. Nenninger Rechtsanwälte, Heinsberg
- Checked in the official register of the German Federal Bar (BRAK) on 22 October 2026
- Overall rating 3.3 of 5
, from 22 reviews of the firm
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- Languages
- Japanese, English
- Focus areas
- Banking and capital markets law (Bank- und Kapitalmarktrecht), Insolvency law (Insolvenzrecht), Inheritance law (Erbrecht), Bankvertragsrecht, Construction law (Baurecht), Neighbour law (Nachbarrecht)
- Opening hours
- Monday 09:00 to 13:00, 14:00 to 17:00
- Tuesday 09:00 to 13:00, 14:00 to 17:00
- Wednesday 09:00 to 13:00, 14:00 to 17:00
- Thursday 09:00 to 13:00, 14:00 to 17:00
- Friday 09:00 to 13:00, 14:00 to 17:00
- Saturday closed
- Sunday closed
Sources: the firm's website, retrieved on 24 October 2026; Google, retrieved on 24 October 2026. Focus areas and opening hours are the lawyer's or firm's own words. Focus areas from the directories' fixed lists have an English label with the German term in brackets; all others stay in German.
Location of the firm
Reviews of the firm
3.3 of 5 Overall rating from 22 reviews on 2 platforms. How we calculate the overall rating
| Platform | Rating | Reviews | As of |
|---|---|---|---|
| golocal | 3.4 of 5 | 5 | 13 October 2026 |
| 2.9 of 5 | 17 | 13 October 2026 |
These reviews apply to the firm, not to individual lawyers.
Details from the official lawyer register
- Name
- Frank Diemer
- Professional title
- Lawyer (Rechtsanwalt)
- Regional bar association
- Köln
- Admitted since
- 6 May 1992
- Law firm
- KNP Dr. Nenninger Rechtsanwälte
- Firm address
- Patersgasse 17, 52525 Heinsberg
- Phone
- 02452-1561556
- Fax
- 02452-1565785
- frank.diemer@diemer.pro
- Identifier in the special electronic lawyer mailbox (beA)
- DE.BRAK.027dd15d-8b0a-4a09-bae1-aa5d3f18e48c.02f2
Source: Official lawyer register of the German Federal Bar under section 31 of the Federal Lawyers' Act (BRAO). The register is kept in German. We show names and addresses as the register gives them and add an English description to German professional titles.
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