Sonja Willner

Of Counsel

Contact details

Palma de Majorca
T +34 971 21 32 54
F +34 971 21 33 88

Main areas
  • Inheritance Law / Estate Planning
  • Real Estate
  • Construction and Engineering
  • Corporate
  • Mergers & Acquisitions


Due to her many years of experience working in Majorca, Sonja Willner is an expert for the local market. She advises domestic and foreign private clients and companies in particular on cross-border issues. Her clients benefit in particular from her expertise in international private law. Also in the sensitive area of family and inheritance law, her experience helps to find the best solution for your individual situation. A key area of Sonja Willners activity is real estate law, an area in which her knowledge of the property market in the Balearic Islands is of particular value, whether for the purchase or sale of a property or the purchase of land with subsequent development.

Sonja Willner also has years of experience in the field of corporate law and M & A transactions in the tourism sector.

Sonja Willner is a sworn translator for Spanish certified by the Higher Regional Court of Dusseldorf.

She is a member of the German-Spanish Lawyers Association, the Austrian-Spanish Lawyers Association and the German-Nordic Lawyers Association.


Sonja Willner studied law at the Universities of Passau and Santiago de Compostela. She completed her legal clerkship at the Higher Regional Court Düsseldorf with stations amongst others. in Barcelona. In 2006 she was admitted as a lawyer by the Bar Association of Frankfurt am Main. Since 2011 she has also been licensed as a Spanish lawyer (abogada) by the Bar Association of the Balearic Islands. 

Sonja Willner has been working for Lozano Schindhelm since 2018 and manages the office in Palma de Mallorca. Prior to that, she worked in various international law firms in Germany and Spain for more than 10 years, most recently leading the German Desk of a well-known Majorcan law firm.