Dr Mathias Walch, LL.M.
(New York)
PartnerAttorney-at-Law (NY, USA) T+49 40 6059089-00 F+49 40 6059089-39 Emw@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- Freie Universität Berlin
School of Law – Fordham University (NYC, NY) - Admission:
- Attorney-at-Law (2002)
Attorney-at-Law, New York, USA (2009) - Language:
- German, English
Expertise
Dr Mathias Walch advises domestic and international clients on real property transactions across all asset classes. He also advises on the corporate structuring of real property investments, joint ventures and shareholders’ agreements.
Prior to founding the firm, Dr Mathias Walch practiced as a lawyer in Hamburg, Berlin, London and New York, and served as a partner in a law firm in Hamburg specializing in real estate law.
Douglas von Rittberg, EMBA
PartnerAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Edvr@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- Law and Economics at the University of Bayreuth and Ludwig Maximilian University of Munich, Master’s degree at the University of Münster
- Admission:
- Attorney-at-Law (2007)
- Language:
- German, English
Expertise
Douglas von Rittberg advises institutional investors, family offices and developers on real property transactions, project developments and financing.
Prior to founding the firm, Douglas von Rittberg practiced as a lawyer in various law firms in Munich and Hamburg, specializing in corporate and real estate law.
Ulrich Nagel
PartnerAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Eun@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- University of Bayreuth, University of Hamburg
Law degree in Business Law, University of Bayreuth (2004) - Admission:
- Attorney-at-Law (2006)
- Languages:
- German, English and French
Expertise
Ulrich Nagel specializes in providing advice on real estate law. His practice focuses on drafting, reviewing and negotiating real property purchase agreements, construction and planning contracts, commercial leases and urban development contracts.
Prior to founding the firm, Ulrich Nagel worked as a lawyer and counsel at real estate law firms in Hamburg.
Dirk Große-Klußmann
PartnerTax Advisor
Attorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Edgk@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- University of Hamburg
- Admission:
- Attorney-at-Law (1997) and Tax Advisor (2003)
- Languages:
- German, English and French
Areas of Expertise
Dirk Große-Klußmann advises national and international clients in the field of real estate, in particular on structuring of real estate transactions, open-ended and closed-ended funds, as well as on investment law, investment tax law and insurance supervisory law. Dirk Große-Klußmann also has many years of expertise in the field of (international) tax law.
Prior to joining the firm in June 2017, Dirk Große-Klußmann worked for more than ten years for a Big Four firm, as well as for law and tax consultancy firms specializing in real estate law.
Markus Griese
PartnerAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Emg@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- University of Freiburg
- Admission:
- Attorney-at-Law (1999)
- Language:
- German, English
Expertise
Markus Griese advises on real property transactions and financing in both domestic and international contexts. In addition, he advises AIFMs and other regulated entities on regulatory matters and on the structuring of AIFs.
Before joining the firm in November 2018, Markus Griese worked, among other positions, for a British property fund manager in London and as managing director and general counsel of an AIFM specializing in real property investments in Hamburg.
Simon Golshan, LL.M. (Haifa)
PartnerAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Esg@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Studium
- University of Hamburg, European Master in Law and Economics at the Universities of Rotterdam, Bologna and Haifa (LL.M.)
- Admission:
- Attorney-at-Law (2009)
- Languages:
- German, English and French
Expertise
Simon Golshan provides legal advice on real property transactions, project developments and ongoing asset management matters. His work in relation to asset management matters covers all aspects of commercial tenancy law, real property law and public and private construction law. His clients include renowned institutional investors, domestic and foreign investors, project developers and family offices.
Prior to joining WALCH RITTBERG NAGEL in 2019, Simon Golshan practiced as an attorney and, from 2017, as a partner at an MDP law firm in Hamburg, specializing in real estate law. Before that, from 2010 to 2014, he began his career at a law firm in Hamburg focusing on real estate law.
Nora Byra
Local Partner*Attorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Enb@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- Freie Universität Berlin
- Admission:
- Attorney-at-Law (2008)
- Language:
- German, English
Expertise
Nora Byra advises national and international clients on real property transactions across all asset classes. Another key focus of her work is the drafting, review and negotiation of commercial leases and property-related contracts.
Prior to joining the firm in January 2018, Nora Byra worked as a lawyer at a major international law firm in Berlin and as counsel at a real estate law firm in Hamburg.
Alexander Fischer
CounselAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Efa@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- Bucerius Law School
School of Law – University of Sheffield (UK) - Admission:
- Attorney-at-Law (2015)
- Language:
- German, English
Expertise
Alexander Fischer advises private and institutional investors throughout all phases of a property investment, from acquisition through to marketing, letting and the disposal of the asset. A key focus is providing legal advice on real property transactions, particularly involving commercial and special purpose real properties such as shopping centers, logistics properties, hotels and student/micro-apartments.
In addition, Alexander Fischer advises on all legal aspects of real project developments, from the acquisition through the conclusion of architect, planner and construction contracts, the construction supervision, an the sale of the project.
Moritz Schmid
CounselAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Ems@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- University of Augsburg, University of Hamburg
- Admission:
- Attorney-at-Law (2012)
- Language:
- German, English
Expertise
Moritz Schmid advises national and international clients on project developments and real property transactions across all asset classes. He also advises on commercial tenancy law, private construction law and agency law, including the enforcement and defense of claims in court. Prior to joining the firm, Moritz Schmid worked at several law firms in Hamburg and Freiburg specializing in real estate law.
Leonie Calsow, LL.M.
CounselAttorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Elc@walchrittbergnagel.com Download vCard
Curriculum Vitae
- Education:
- Georg-August University of Göttingen
University of Münster - Admission:
- Attorney-at-Law (2020)
- Language:
- German, English
Expertise
Leonie Calsow advises private and institutional investors on real property transactions. In particular, her work comprises advising on the purchase and sale of existing real properties and development projects, including legal due diligence up to the drafting, negotiating and conclusion of the purchase agreement. She also provides advisory services in the field of asset management.
Annette Thümmler
Attorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Eat@walchrittbergnagel.com Download vCardCurriculum Vitae
- Education:
- Friedrich-Alexander University of Erlangen-Nuremberg
- Admission:
- Attorney-at-Law (2018)
- Language:
- German, English
Expertise
Annette Thümmler primarily advises national and international clients on real property transactions. In particular, her work involves advising on all legal aspects of the acquisition and sale of existing real properties and real property developments. She also provides advice in the field of company law.
Prior to joining WALCH RITTBERG NAGEL in July 2022, Annette Thümmler worked for several years as a lawyer specializing in real estate law at a mid-cap MDP law firm in Nuremberg.
Benedikt Röther
Attorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Ebr@walchrittbergnagel.com Download vCardCurriculum Vitae
- Education:
- Georg-August University of Göttingen
University of Münster - Admission:
- Attorney-at-Law (2021)
- Language:
- German, English
Expertise
Benedikt Röther advises national and international clients on all legal aspects of the purchase and sale of existing real properties and real property developments. In addition to supporting transactions, his work includes advising on private construction law and, within the context of asset management, in particular the drafting and review of lease agreements.
Furthermore, Benedikt Röther represents clients in both judicial and extrajudicial disputes.
Johannes Begemann
Attorney-at-Law T+49 40 6059089-00 F+49 40 6059089-39 Ejb@walchrittbergnagel.com Download vCardCurriculum Vitae
- Education:
- Political Science (BA), University of Hamburg, (2018)
Law, University of Hamburg, (2022) - Admission:
- Attorney-at-Law (2025)
- Language:
- German, English
Expertise
Johannes Begemann advises national and international clients on real estate project developments and rel estate transactions across all asset classes. Another focus of his practice is private construction law and asset management, particularly drafting and review of lease agreements and providing comprehensive legal advice on real property management matters.
Johannes Begemann also represents clients both in and out of court.
