Trust through expertise

About us

Founded in 2010 by experienced lawyers, the law firm trûon Rechtsanwälte combines diverse expertise in all areas of real estate-related and public commercial law – a highly specialized corporate law firm with an eye for the essentials.

Our name trûon – derived from Old High German „triuwōn / trūwēn“ – stands for trust.

Earning trust. Not only the trust of the client, but also that of the negotiating partner. In an atmosphere of earned trust, parties reach consensus much more quickly, efficiently and satisfactorily.

Achieving goals. Law is primarily a means to an end – our ultimate goal is to achieve your business objectives and strategies. We employ our legal expertise to implement these objectives and strategies in a focused and creative manner, drawing on our experience and knowledge of the market. We offer clear opinions and provide a reasonable risk analysis.

At trûon Rechtsanwälte, we are dedicated to your concerns with competence and passion – for real estate, exciting projects and complex legal issues.

Expertise

Team

Lawyer and Partner

Dr. Dirk Büllesfeld, LL.M.

Dagmar Jonski
Lawyer and Partner

Dagmar Jonski

Laywer and Partner

Dr. Sonja Tegtmeyer

Dr. Felix von Stackelberg
Lawyer and Partner

Dr. Felix Frhr. v. Stackelberg, LL.M.

Antonia Koch
Associate Lawyer

Antonia Koch

Benjamin Lehmann
Associate Lawyer

Benjamin Schultek

Associate Lawyer

Mario Schliephake

Associate Lawyer

Dr. Beatrix zu Knyphausen

Associate Lawyer

Philipp Rademann, LL.M.

Lawyer and Partner

Dr. Dirk Büllesfeld, LL.M.

Dirk Büllesfeld is one of the founding partners of trûon Rechtsanwälte. From the beginning of 2005 until trûon Rechtsanwälte was founded in 2010, Dirk Büllesfeld worked as an attorney at Freshfields Bruckhaus Deringer in Hamburg.

Dirk Büllesfeld studied law at the University of Freiburg, where he also worked as an academic assistant and wrote his dissertation on a topic of police and constitutional law. His federal law clerkship took him to Lübeck, Hamburg and New York. In 2008 he earned his LL.M. degree in environment, planning and regulatory at Nottingham Trent University.
Dirk Büllesfeld is co-author of the commentary issued by Greb/Boewe on the Renewable Energy Sources Act and teaches at the BBA – Akademie der Immobilienwirtschaft e.V., Berlin.

Specialisation:

  • public building and planning law
  • environmental law
  • renewable energy law
  • infrastructure projects
  • real estate transactions
  • commercial tenancy law
  • project developments

Languages: German, English, French

e-mail:dirk.buellesfeld@truon.de

Phone:+49 40 55 44 5 99 33

Dagmar Jonski

Lawyer and Partner

Dagmar Jonski

Dagmar Jonski is one of the founding partners of trûon Rechtsanwälte. Until trûon Rechtsanwälte was founded in 2010, she worked as an attorney at Freshfields Bruckhaus Deringer in Hamburg practicing real estate business law. During her time at Freshfields, she also completed secondment with the Asian subsidiary of a capital investment company, advising the company on investments in Asia.

Dagmar Jonski studied law at the University of Hamburg. After graduating from law school, she worked for the law firm of Anders Luther/Anderson Legal in Hamburg, Germany, and Sydney, Australia, and later worked as a legal assistant for the law firm of Happ Recke Luther. She was admitted to the bar in 2004.

Specialisation:

  • real estate transactions (asset deals, share deals, forward deals, sale and lease back)
  • project developments
  • joint ventures and cooperation agreements
  • lease agreements
  • asset management
  • advising institutional, regulated and public enterprises

Languages: German, English

e-mail:dagmar.jonski@truon.de

Phone:+49 40 55 44 5 99 44

Laywer and Partner

Dr. Sonja Tegtmeyer

Sonja Tegtmeyer is one of the founding partners of trûon Rechtsanwälte. After admittance to the bar in 2004 she worked as an attorney at Freshfields Bruckhaus Deringer in Hamburg practicing real estate business law until founding trûon Rechtsanwälte in 2010.

Sonja studied law in Göttingen, Germany, and Madrid, Spain. After her federal clerkship in Hamburg, she worked as an academic assistant at the International Tax Institute of the University of Hamburg and wrote her dissertation on a topic of international tax law.

Specialisation:

  • Real estate transactions (asset and share deals, sale and lease back)
  • real estate joint ventures
  • bidding processes
  • project developments
  • real estate financing
  • commercial tenancy law, asset management

Languages: German, English, Spanish, French

e-mail:sonja.tegtmeyer@truon.de

Phone:+49 40 55 44 5 99 55

Dr. Felix von Stackelberg

Lawyer and Partner

Dr. Felix Frhr. v. Stackelberg, LL.M.

Felix v. Stackelberg is partner at trûon Rechtsanwälte. He was admitted to the bar in 2010. He works with trûon since 2011, becoming a partner in 2018.

Felix v. Stackelberg studied law at the Universities of Göttingen and Poitiers (France) In 2007, he earned his post-graduate LL.M. degree at the University of Edinburgh. in European Law. His legal clerkship took him to Hamburg, Bonn and Kazakhstan. Thereafter, he wrote his dissertation on a topic of Constitutional law and environmental protection law.

Specialisation:

  • project developments
  • public building and planning law
  • real estate transactions (asset and share deals)
  • commercial tenancy law
  • public procurement law
  • renewable energy law

Languages: German, English, French, Russian

e-mail:felix.vonstackelberg@truon.de

Phone:+49 40 55 44 5 99 88

Antonia Koch

Associate Lawyer

Antonia Koch

Antonia Koch is an employed associate of trûon Rechtsanwälte since 2017. Since her admittance to the bar in 2014, she was employed at a real estate law firm with notary in Hanover.

Antonia Koch studied law at the University of Bremen. During her legal clerkship at the higher regional court of Bremen, she worked at the real estate group of an international law office in Hamburg and in London.

Specialisation:

  • real estate transactions
  • project developments
  • commercial tenancy law
  • private building and architect law

Languages: German, English

e-mail:antonia.koch@truon.de

Phone:+49 40 55 44 5 99 77

Benjamin Lehmann

Associate Lawyer

Benjamin Schultek

Benjamin Schultek (né Lehmann) works at trûon Rechtsanwälte since 2021 as an associate lawyer. He was admitted to the bar in 2021.

Benjamin Schultek studied law at the University of Greifswald. After working for a major law firm in the public commercial law sector he finished his legal clerkship at the Higher Regional Court (Oberlandesgericht) of Schleswig with stages in Lübeck and Hamburg.

Specialisation:

  • real estate transactions
  • project developments
  • public building and planning law
  • commercial tenancy law
  • litigation

Languages: German, English

e-mail:benjamin.schultek@truon.de

Phone:+49 40 55 44 5 99 20

Associate Lawyer

Mario Schliephake

Mario Schliephake works at trûon Rechtsanwälte since 2022. He was admitted to the bar in 2019. Before joining trûon Rechtsanwälte, Mario Schliephake worked as a lawyer at a commercial law firm in Hamburg, inter alia in the field of energy regulatory law.

Mario Schliephake studied law and political science at the University of Jena and at the University of Heidelberg. During his legal clerkship at the Regional Court of Heidelberg, he worked for a law firm in Stuttgart specializing in public commercial law.

Specialisation:

  • Public building and planning law
  • environmental law
  • energy industry law
  • renewable energy law
  • infrastructure projects
  • project developments
  • real estate transactions

Languages: German, English

e-mail:mario.schliephake@truon.de

Phone:+49 40 55 44 5 99 66

Associate Lawyer

Dr. Beatrix zu Knyphausen

Beatrix zu Knyphausen joined trûon Rechtsanwälte in 2022. She was admitted to the bar in 2022.

Beatrix zu Knyphausen studied law at the Universities of Heidelberg and Münster. Afterwards, she completed her dissertation in public law on a constitutional law question. Before joining trûon, she worked as a research assistant in the corporate law/M&A practice group of two international commercial law firms. During her legal clerkship, she worked, among others, in the Construction Senate of the Hanseatic Higher Regional Court, at the Administrative Court and in the litigation practice group of a commercial law firm.

Specialization:

  • Real estate transactions
  • project developments
  • private construction law
  • commercial tenancy law
  • litigation

Languages: German, English, French

e-mail:beatrix.zuknyphausen@truon.de

Phone:+49 40 55 44 5 99 77

Associate Lawyer

Philipp Rademann, LL.M.

Philipp Rademann joined trûon Rechtsanwälte in 2022. He was admitted to the bar in 2019. Before joining trûon Rechtsanwälte, Philipp Rademann worked for two commercial law firms in Cologne and Hamburg.

Philipp Rademann studied law at the University of Freiburg. He obtained an LL.M. in international law at the University of Cape Town in 2021. Mr. Rademann completed his legal clerkship at the Higher Regional Court of Cologne with stages in a regional court construction chamber and in the public procurement law practice of a public authority.

Specialisation:

  • Real estate transactions
  • public building and planning law
  • private construction law
  • commercial tenancy law
  • public procurement law

Languages: German, English

e-mail:philipp.rademann@truon.de

phone:+49 40 55 44 5 99 30

News

Career

Wir bieten für hochqualifizierte Juristen mit überdurchschnittlichen Examensergebnissen und sehr guten Englischkenntnissen die Alternative zur typischen Großkanzlei: Arbeiten in einem jungen und dynamischen Team mit flachen Hierarchien an spannenden und abwechslungsreichen Aufgaben innerhalb des öffentlichen und immobilienbezogenen Wirtschaftsrechts und darüber hinaus.

Wir suchen kreative Köpfe, die mit Leidenschaft und viel Engagement bei der Sache sind, die Herausforderungen eines anspruchsvollen Jobs aber auch in einem gesunden Verhältnis zu ihrem Privatleben sehen. Sie sehen sich als Wirtschaftsberater und arbeiten gerne lösungsorientiert? Sie ziehen ein breitgefächertes „Training on the Job“ mit raschem Kontakt zum Mandanten einer Ausbildung zum Inselbegabten im „Back Office“ vor? Dann freuen wir uns, Sie kennenzulernen!

Bitte richten Sie Ihre Bewerbung als Rechtsanwalt (m/w/d) oder Referendar (m/w/d) an Dr. Dirk Büllesfeld unter bewerbung@truon.de .

AKTUELL: Wir suchen einen Rechtsanwalt (m/w/div) zur Verstärkung unseres Teams! Nähere Informationen finden Sie hier.