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Dr Piotr Sitnik LL.M.

Senior Associate

Piotr Sitnik is a member of the Corporate/M&A practice. 

He specialises in corporate and commercial contract law (including consumer contracts) as well as mergers and acquisitions, restructurings and reorganisations of capital groups and multinational conglomerates. Piotr has handled a number of complex transactional processes involving share and asset deals (including sales of businesses and going concerns), mergers, conversions and spin-offs.

He has also coordinated due diligence processes, andis experienced in planning, coordinating and managing international reorganisations across multiple jurisdictions, and in helping foreign companies launch and run their operations in Poland.

Professional QualificationsAdvocate (Adwokat) registered with the Warsaw Bar Association of Advocates (Okręgowa Izba Adwokacka w Warszawie)


  • Advising General Electric Company and its subsidiaries on a wide range of reorganisations and restructurings, entailing mergers (including cross-border mergers), conversions, capitalisations and debt restructurings, spin-offs, and share and asset deals.
  • Advising Danaher on multiple capitalisations, share emissions, shareholders’ agreements, investment agreements, intra-group credit instruments and cross-border conversions.
  • Advising a multinational publishing and education company on a global reorganisation involving 10+ jurisdictions and envisaging share, business and asset transfers, branch formations, cross-border mergers and other corporate simplifications of the group’s structure (including contract-based).
  • Advising Ecolab, an American corporation specialising in the treatment, purification, cleaning and hygiene of water, on multijurisdictional restructurings and reorganisations of subsidiaries and holding companies, entailing the coordination of international teams across 15+ jurisdictions and multiple specialisations.
  • Advising BASF, the world’s largest chemical conglomerate, on a major demerger and spin-off of the company’s business engaged in the production of catalysts which reduce the emission of harmful substances in cars, trucks and motorcycles.
  • Advising a major pan-European, multi-technology, renewable energy developer on setting up a joint venture with a Polish partner, including a share sale, a joint venture agreement and a shareholders’ agreement.
  • Advising Medtronic on its acquisition of Medicrea, an AI-enabled spinal surgery company, and post-closing reorganisations involving asset and share deals and mergers.
  • Advising TIP Trailer Services, a truck trailer leasing company, on its acquisition of PEMA’s Polish business and post-closing reorganisations involving mergers and spin-offs.
  • Advising Mavenir, an American telecommunications software manufacturer, on domestic and cross-border mergers of subsidiaries.
  • Advising Marsh on multiple intra-group capitalisations, share and asset deals of multiple subsidiaries as pre-closing steps to exits, and the coordination of Europe-wide project management teams.
  • Advising Discovery Communications, a world-renowned media conglomerate, on reorganisation processes involving companies from the TVN capital group in Poland.
  • Advising Avalara, an international provider of tax compliance software and automated solutions, on the legal aspects of the launch of its operations in Poland, including the cross-border provision of services, the establishment of a corporate presence and commercial contract and consumer law advice.
  • Advising Terminal, a US recruiting platform, on the planning and launch of its operations in Poland, including the setting up of a locally incorporated entity and commercial contract advice.
  • Polish
  • English
  • Jagiellonian University, Postgraduate Studies (PgDip), Consumer and Commercial Contract Law, 2023
  • Maria Curie-Skłodowska University, Doctor of Laws (PhD), 2022
  • Lazarski University, Master of Laws (MA), 2020
  • City, University of London, Master of Laws (LLM), 2019

Prior Experience

  • May 2022 – present, Senior Associate, DLA Piper, Warsaw
  • November 2019 – April 2022, Associate, DLA Piper, Warsaw
  • May 2018 – October 2019, Junior Associate, DLA Piper, Warsaw
  • August 2017 - April 2018, Paralegal, DLA Piper, Warsaw

Additional Qualifications

  • Sworn translator of the English language (tłumacz przysięgły języka angielskiego) registered with the Ministry of Justice (Ministerstwo Sprawiedliwości).