
CMS Reich-Rohrwig Hainz Rechtsanwälte GmbH‘s arbitration practice has been praised for its 'practical, commercial mindset' and advises on international arbitral proceedings, with a broad range of work including challenges of jurisdiction, joint venture disputes and construction proceedings. Practice head Daniela Karollus-Bruner and Sonja Otenhajmer are the key names in the practice and have experience in complex bifurcated proceedings.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Billing & efficiency
Client satisfaction: Sector knowledge
Client satisfaction: NPS ®
Testimonials
Collated independently by Legal 500 research team.
- ‘Excellent education of the team members; comprehensive knowledge of the situation, problems and issues and their solutions; high professionalism of the team members.’
- ‘Analytical approach to the issues; prompt and open communication; efficient delivery of the outputs; amicable relationships.’
- ‘The CMS dispute resolution and arbitration team combines real technical strength with a practical, commercial mindset. They are outstanding in managing complex, cross-border disputes and consistently deliver strategies that are both effective and efficient.’
- ‘The CMS team members I’ve worked with stand out for their sharp legal insight, commercial awareness and approachable style. The partners bring real strategic vision, while associates are thorough, responsive, and highly collaborative. What I’ve valued most is their ability to simplify complex disputes and stay focused on achieving the best outcomes for clients.’
Key clients
- STRABAG
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head
Daniela Karollus-Bruner
Other key lawyers
Sonja Otenhajmer
