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Portrait of Sonja Otenhajmer

Sonja Otenhajmer


CMS Reich-Rohrwig Hainz
Rechtsanwälte GmbH
Gauermanngasse 2
1010 Vienna
Languages German, English, Serbian, Bosnian, Croatian, Italian, Spanish

Field of activity

Sonja Otenhajmer is a lawyer for litigation and arbitration as well as corporate and commercial law. Her practice focuses on international arbitration.

Previous professional experience/training

She completed her legal education at the Universities of Vienna, Bologna and Belgrade. During her studies at the University of Vienna, which she completed with distinction, she took part in the international arbitration competition. She gained a wide range of professional experience, in particular as a university assistant at the Institute for Civil Procedure Law at the University of Vienna and during her work for renowned international commercial law firms in Vienna and Madrid. Sonja Otenhajmer has been an associate at CMS Reich-Rohrwig Hainz since 2016.

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Relevant experience

  • 2012 – 2014 – University assistant at the University of Vienna’s Department of Civil Procedure
  • 2010 – 2015 – Practical experience at renowned law firms (Vienna, Madrid) 
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Memberships & Roles

  • YAAP – Young Austrian Arbitration Practitioners
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  • Comment on Supreme Court ruling OGH 4 Ob 71/14s, EvBl 2015/2 re claims for injunctive relief against access-provider
  • Internationale Wirtschaftsmediation im studentischen Wettbewerb (International commercial mediation in student competitions), JAP 2013/2014/04
  • Comment on Supreme Court ruling OGH 8 ObS 14/12k, ÖJZ 2013/78, 550
  • Sind Leasingentgelte für Superädifikate Sondermassekosten? (Can leasing costs for buildings on third-party property be considered special liquidation costs?) ZIK 2010/181, 126
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Lectures list

  • 2014 – Presentation on mediation and negotiation techniques, Aarhus University, Denmark
  • 2013 – 2014 – University lecturer for civil procedure law at the University of Vienna
  • 2013/2014 – ICC International Commercial Mediation Competition, Paris, Coach of the Viennese team
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  • 2015 – Faculty of Law at the Union University, Belgrade (Mag. iur.)
  • 2014/2015 – Legal traineeship at the Higher Regional Court of Vienna
  • 2012 – Faculty of Law at the University of Vienna (Mag. iur.)
  • 2011 – Faculty of Law at the University of Bologna (Erasmus)
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Sonja Oten­hajmer strengthens the CMS team as at­tor­ney-at-law spe­cial­ised...
Sonja Oten­hajmer con­tin­ues to sup­port the Dis­pute Res­ol­u­tion Team at CMS in Vi­enna as a re­gistered at­tor­ney-at-law. Her fo­cus re­mains on in­ter­na­tion­al ar­bit­ra­tion.Sonja Oten­hajmer (31) has sup­por­ted CMS...