Rent and Tenancy Law

In the area of tenancy and leasehold law, our activities include advising on the drafting and implementation of commercial tenancy agreements and the drafting of lease agreements. This also includes the implementation of complex maintenance and modernisation measures. We have many years of experience in providing legal advice in connection with rent increases, terminations and their judicial enforcement. Our clients include landlords and tenants of several hundred commercial properties, whom we advise and represent on tenancy law throughout Germany.

Dr. Matthias Zieres Partner

Career trajectory

  • Studied law and postgraduate studies in international business law at Saarland University and the University of London
  • 1997 Admitted to the bar and joined the law firm Kropp Haag Hübinger
  • 2000 Admission to the law firm Kropp Haag Hübinger
  • 2001 Doctorate (Dr. jur.) at the University of Saarland
  • Since 2005, lawyer of trust of the Saarland state government to combat corruption


  • "Frequently recommended lawyer" (JUVE Handbook of Commercial Law Firms 2001/2002, 2002/2003, 2003/2004, 2004/2005, 2005/2006, 2006/2007, 2007/2008, 2008/2009, 2009/2010, 2010/2011, 2011/2012, 2012/2013, 2013/2014, 2014/2015, 2015/2016, 2016/2017, 2017/2018, 2018/2019, 2019/2020, 2020/2021, 2021/2022, 2022/2023, 2023/2024)
  • "Top advisor" (JUVE Handbook of Commercial Law Firms 2012/2013)
  • "internat. clientele" (JUVE Handbook of Commercial Law Firms 2008/2009)
  • "The next generation of partners, Zieres is frequently mentioned here, has succeeded in acquiring a whole series of foreign and international clients" (JUVE Handbook of Commercial Law Firms 2006/2007)
  • "Hong Kong or India ... Quite untypical for a Saarbrücken-based lawyer, some of his most important clients are based there" (JUVE Rechtsmarkt 08/2006)
  • "The driving force ... the young public procurement lawyer Zieres" (JUVE Handbook of Commercial Law Firms 2005/2006)
  • "praised by colleagues from large law firms for his litigation work in the area of public procurement law", "especially software law - was mentioned because of his Europe-wide public procurement law work for this sector" (JUVE Handbook of Commercial Law Firms 2001/2002)
  • Included in JUVE Rechtsmarkt's "40 under 40" list of leading young lawyers in Germany in 2001: "excellent work, which even colleagues from large law firms in the major cities recognize", "good reputation in public procurement law" (JUVE Rechtsmarkt 08/2001)
  • Translated with (free version)

  • Member of the "Specialist Lawyer for Information Technology Law" committee of the Saarland Bar Association (since 2008)

  • DVNW German Procurement Network
  • Information Technology Working Group of the German Bar Association
  • Construction and Real Estate Law Working Group of the German Bar Association
  • Institute for Lawyers' Law Saarbrücken (founding member)
  • Saarland Bar Association

  • From the 23rd to the 26th edition co-author of the standard work on liability law: Geigel, Der Haftpflichtprozess, Verlag C. H. Beck, Munich
  • Lectures on EU public procurement law, green public procurement, socially responsible public procurement, competition law and contract drafting, among others
  • Speaker at national and international conferences on public procurement law topics