Sebastian Orthmann
About Sebastian Orthmann
Sebastian Orthmann is a lawyer based in Hamburg, DE and has been recognized in The Best Lawyers in Germany™ since 2019. Sebastian Orthmann is recognized in the following practice areas:
- Hamburg, Germany
- Corporate Law
- Mergers and Acquisitions Law
- Real Estate Law
Current Firm: CMS Hasche Sigle
Location: Hamburg, DE
It takes just a few minutes to optimize your profile for prospective clients and lawyers ready to refer.
Log in to your account or continue as a guest to view annual subscription pricing.
Nearby Lawyers
Born in Hamburg in 1963, Jan Dietze studied law in Passau and at King’s College in London, UK, where he obtained his Diploma of Legal Studies. He also studied in Freiburg and at Europa-Kolleg in Bruges, Belgium, where he obtained the Diplôme D’Hautes Études Européennes. Jan Dietze has been a lawyer at ZENK since 1995 and is partner with ZENK. His practice focuses on corporate and commercial law and M&A. He also specializes in antitrust law and compliance. M...
Arnd Weisner is a lawyer recognized by Best Lawyers in the practice areas of Capital Markets Law, Corporate Law, Litigation and Mergers and Acquisitions Law. Arnd practices law in Hamburg, Germany Best Lawyers has recognized Arnd Weisner since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Arnd Weisner is held by other lawyers.
Michael Nicolaus is a lawyer recognized by Best Lawyers in the practice areas of Criminal Defense and Criminal Tax Practice. Michael practices law in Hamburg, Germany Best Lawyers has recognized Michael Nicolaus since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Michael Nicolaus is held by other lawyers.
Dr Sven Magnussen has advised construction companies, property and project developers, and property managers since 1994. As a specialist lawyer for construction and architectural law, he focuses on these areas as well as real estate, tenancy law, and project development. He has extensive experience representing clients both in and out of court and is based in Hamburg.
Olaf Hartenstein is a lawyer recognized by Best Lawyers in the practice areas of Maritime Law and Transportation Law. Olaf practices law in Hamburg, Germany Best Lawyers has recognized Olaf Hartenstein since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Olaf Hartenstein is held by other lawyers.
Franziska von Kummer is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. Franziska practices law in Hamburg, Germany Best Lawyers has recognized Franziska von Kummer since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Franziska von Kummer is held by other lawyers.
Born in Hamburg in 1962, Birgitta Weihrich studied law in Hamburg. After completing her legal clerkship – including a post at the Directorate-General for Competition of the European Commission in Brussels and Speyer – she was admitted to the bar in 1992. After spending a number of years in a commercial law firm in Northern Germany and as a legal advisor and authorized signatory of an insurance company, she joined ZENK in 2018. She has many years’ experience in both a wide ra...
Explore and Learn
What AI Visibility Means for Lawyers
by Bryan Driscoll and Josh Rupall
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
The Best Lawyers in Canada 2027: Recognizing the Nation's Top Legal Talent
by Jamilla Tabbara
Honoring established leaders and rising practitioners across Canada's legal profession.
2027 Best Lawyers Awards: Honoring Excellence in the Legal Profession
by Jamilla Tabbara
Recognizing the outstanding attorneys leading top practice areas nationwide.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
Rules on Gifting Money to Family: What to Know
by Bryan Driscoll
Generosity often runs ahead of paperwork. Here's how to give to loved ones without surprising the IRS, your estate plan or your relationships.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Who Can Override a Power of Attorney?
by Bryan Driscoll
A power of attorney carries real legal authority, but it isn't absolute. Here's who can step in to revoke, restrict or set it aside.
How to Get an Eviction Off Your Record
by Bryan Driscoll
Whether an eviction can be removed, sealed or corrected depends on your state, your case and where the record appears.