Urban Thier & Federer Attorneys at Law
Your partner in international and complex legal matters
Our lawyers represent you in Germany and internationally. We work closely with our foreign colleagues. First, we will discuss your concern with you in our German offices and then implement the agreed-upon strategy abroad with lawyers admitted there on your behalf. Our lawyers have extensive experience and expertise in initiating international business, litigation, and court proceedings. Our philosophy is to save you the costs of unnecessary litigation through efficient work and sound advice. Often, an acceptable compromise is a better solution than a lengthy and costly legal dispute. However, if litigation is unavoidable, we will pursue it with all due diligence in your best interest.

Our Practice Areas
The international law firm Urban Thier & Federer Attorneys at Law advises medium-sized Support for Private individuals and companies with interests in the United States and/or the European Union in various legal matters. We also maintain close ties with numerous law firms in the USA and Europe (Germany, Switzerland, Austria). We maintain strategic relationships to other law firms with whom we frequently cooperate on cases that can be handled more efficiently there. Cross-border legal issues are subject to various legal systems, regulatory authorities, and procedural peculiarities. Our international lawyers will support you or your organization in navigating the following issues:
International Inheritance Law
We represent you domestically and internationally and support you in the creation of a will and in international estate planning. Do you have an inheritance from the USA with a connection to Germany? We can help you in collaboration with our US law firm.
International Business Law
Certain legal structures in the USA or Great Britain are not suitable or even permissible for individuals residing in Germany. Our law firm assists clients in assessing the many factors important for choosing the most appropriate legal form for a company. The goal here is often to limit liability as much as possible while simultaneously taxed at only one level.
U.S. Damages Claims
The American law firm Urban Thier & Federer P. A. represents clients from Germany, Austria, and Switzerland in enforcing claims for damages and compensation in the USA. The close cooperation between German and American lawyers in cross-border proceedings is one of the special focuses of our work.
International Family Law
We assist our clients in aligning and adapting prenuptial agreements with the regulations of legal systems that are considered future places of residence. We also help with drafting wills and estate planning, inheritance disputes and contesting wills, as well as setting up trusts.
Urban Thier & Federer Attorneys at Law – The Firm

Carl Christian Thier
Founder and Managing Director

John Urban
Founder and Head of Procedural Law
With Locations in Germany and the USA we can efficiently coordinate international mandates and provide clients with comprehensive support for cross-border legal matters. We are available for legal advice, assistance with domestic and international transactions, and other issues, as well as for initiating and defending legal disputes, if necessary.
Through our numerous locations and lawyers worldwide, we can offer your case the utmost attention and ensure due diligence in your domestic and international legal matters.
Testimonials
Optimal solutions and careful post-processing
The law firm Urban Thier & Federer, P.A. was tasked with assisting me in settling my late wife's estate, following her passing in January of last year. Dr. Isabel Saulnier was assigned to me as the attorney handling my case. I am extremely satisfied with the quality of her work. Her accessibility, her ability to explain complex matters clearly and offer optimal solutions, her meticulous follow-up (even while on vacation), and her speed and flexibility were exceptional. Dr. Saulnier was consistently outstanding. In addition to her professionalism, she is also a very pleasant person to work with, which was particularly valuable during this difficult time. I have already recommended her services to a colleague at the French Consulate and will continue to do so whenever assistance with estate matters is needed.
A. S.
Kept up to date at every stage
As I am based in the UK, I needed a law firm that I could trust to act on my behalf and in my best interests. Urban Thier & Federer has more than fulfilled this! I am absolutely thrilled. They kept us informed at every stage, gave us valuable advice, and ultimately achieved everything we had hoped for (and a little bit more). Highly recommended. Thank you very much!
R. M.
Support with property in Florida
We invested in a property in Florida, which in my opinion was sold to us incorrectly. We learned that the construction project had run into difficulties, which of course caused us great stress and worry, as we didn't know who to turn to. John Urban was recommended to us, and some of us engaged his law firm to salvage something in this situation. We found them to be very professional, our questions were answered promptly, and no false promises were made regarding our options. Overall, investing in our dream vacation home was not a pleasant experience, but without the support of this law firm, it could have been much worse.
R. M.
Further customer testimonials can be found on Google.
We are very happy about your review and thank you very much for your feedback!
Our lawyers
Across locations, you have over 25 colleagues from different countries and states and regions. Here you will find an overview of our team, as well as the areas of expertise and specializations of our lawyers.




















Articles & News
Estate planning with assets in the USA
Estate Planning for Assets in the USA Image source: Proxima Studio Many of our clients, whom we assist with the acquisition, holding, or sale of real estate and investments in the USA, turn to us sooner or later with questions regarding international estate planning. This is not surprising: those who hold assets in multiple countries will sooner or later face the [...]
June 6, 2026
U.S. Subsidiary or U.S. Branch? Forms of Business for German Companies in the USA
June 2, 2026
Buying and Selling Real Estate in the USA
May 28, 2026

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Our Locations
As an international law firm focusing on the USA and German-speaking regions, you can find us in our offices in Munich (Bavaria, Germany), Aachen (North Rhine-Westphalia, Germany), New York (New York, USA), Los Angeles (California, USA), Atlanta (Georgia, USA), Houston (Texas, USA), Orlando (Florida, USA), Palm Beach (Florida, USA), Westport (Connecticut, USA), and London (England, Great Britain).