Lawyer profile
Dr. iur. Marius Sieja, EMBA
Certified specialist in tax law (Fachanwalt für Steuerrecht), Kanzlei SLR, Münster
- Checked in the official register of the German Federal Bar (BRAK) on 21 October 2026
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At a glance
- Languages
- English, French, Polish, Arabic
- Online consultation
- offered
- Focus areas
- Business law (Wirtschaftsrecht), Company law (Gesellschaftsrecht), Tax criminal law (Steuerstrafrecht), Tax law (Steuerrecht), Wirtschafts- und Steuerrecht
Sources: the firm's website, 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
Details from the official lawyer register
- Name
- Dr. iur. Marius Sieja, EMBA
- Professional title
- Lawyer (Rechtsanwalt)
- Specialist titles
- Certified specialist in tax law (Fachanwalt für Steuerrecht)
- Regional bar association
- Hamm
- Admitted since
- 21 February 2008
- Law firm
- Kanzlei SLR
- Firm address
- Fresnostr. 18, 48159 Münster
- Phone
- 0251-3844130
- Fax
- 0251-38441399
- marius.sieja@kanzlei-slr.de
- Website
- www.kanzlei-slr.de
- Identifier in the special electronic lawyer mailbox (beA)
- DE.BRAK.14eb02ad-950c-4b49-8545-7158f683dd6f.5b22
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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