Contact Jean Steffen

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p. +352.26.025-1

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Sonny Billa

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p. +352.26.025-242

Country of Admission

Luxembourg, 1991


English, French, German, Luxembourgish


  • Université Paris I, France, DEA en droit privé  (Post-Graduate Degree in Private Law), 1992.
  • London School of Economics, UK, LL.M., 1990.
  • Université Paris I, France, Maîtrise en Droit des Affaires (Master in Business Law), 1989.

Selected experience

  • Jean manages and coordinates complex domestic and multi-jurisdictional legal projects for major local and international companies in a wide array of both financial structures and industries.
  • He is a regular counsel on structuring, negotiation and execution of complex acquisitions, divestitures and mergers, financial arrangements, corporate and tax planning.
  • Jean provides assistance on all layers of structuring and drafting of hybrid finance instruments.
  • He regularly advises private equity houses Apax, Lime Rock Partners, Cadent Energy Partners and Index Ventures.
  • He recently assisted Parker Hannifin Group in a large scale European sales company reorganisation.


  • Former visiting Lecturer, Université de Bourgogne - Dijon, France - and ICHEC Brussels
  • International Bar Association (IBA)


  • IFLR1000: Highly regarded in Banking, private equity, M&A practice