Lawyer profile
Markus Cosler
Certified specialist in construction and architects' law (Fachanwalt für Bau- und Architektenrecht), Delheid Soiron Hammer PartGmbB, Aachen
- Checked in the official register of the German Federal Bar (BRAK) on 21 October 2026
- Overall rating 4.4 of 5
, from 91 reviews of the firm
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At a glance
- Languages
- English
- Focus areas
- Architects' law (Architektenrecht), Private construction law (Baurecht (privates)), Property developer law (Bauträgerrecht), Commercial tenancy law (Gewerberaummietrecht), Property sales (Immobilienverkäufe)
Sources: Deutsche Anwaltauskunft des Deutschen Anwaltvereins, retrieved on 12 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
4.4 of 5 Overall rating from 91 reviews on 1 platform. How we calculate the overall rating
Google
These reviews apply to the firm, not to individual lawyers.
Details from the official lawyer register
- Name
- Markus Cosler
- Professional title
- Lawyer (Rechtsanwalt)
- Specialist titles
- Certified specialist in construction and architects' law (Fachanwalt für Bau- und Architektenrecht)
- Regional bar association
- Köln
- Admitted since
- 11 December 1998
- Firm address
- Friedrichstr. 17-19, 52070 Aachen
- Phone
- 0241-946680
- Fax
- 0241-9466877
- kanzlei@delheid.de
- Identifier in the special electronic lawyer mailbox (beA)
- DE.BRAK.518085a2-62c2-4923-979c-539c40441e43.7ca4
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.
Law firm: Delheid Soiron Hammer PartGmbB
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