weber schaub & partner ltd.

Lorenz Baumann has been a partner at ws&p since 2004 and primarily focuses on inheritance and estate law with the following focus areas: Advice on estate planning (marriage and inheritance contracts, wills etc.), estate settlements (executor mandates, representation of heirs, estate administration), conducting negotiations and lawsuits. He regularly publishes articles on inheritance law issues, in the specialist magazine «Successio», in particular. Lorenz Baumann has also worked for 20 years as a criminal defence lawyer.

Jürg Dannecker

Jürg Dannecker was a partner for many years and is now acting as counsel at ws&p. He primarily focuses on corporate tax law and provides support to individuals with demanding tax situations. As a result of his training as a tax expert and many years of experience at a Big Four company and at weber schaub & partner, he has extensive expertise and a wealth of experience in tax planning and supporting such transactions as restructuring, the purchase, sale, founding or liquidation of companies. He advises companies and company owners on national and international matters.

Regula Dannecker

Regula Dannecker has been a partner at ws&p since 2019. Her preferred areas of activity are company and contract law, employment law and inheritance law. She advises SMEs and corporations, supports companies and individuals with contractual, inheritance and estate matters, in particular those with international reach. She also advises companies on issues concerning data protection law.

Marco Frigg has been a partner at ws&p since 2025. He specializes in all areas of private client law, in particular national and international wealth and estate planning (gifts, wills, inheritance contracts, prenuptial agreements, business succession etc.), cross-border estate litigation as well as foundation and trust law. He is also experienced in dealing with aspects of tax and real estate law. Beyond that, Marco Frigg offers strategic counsel in the domains of corporate law and family governance. He is particularly well-versed in navigating complex cases with multijurisdictional issues. Marco Frigg works both in an advisory capacity and as a representative in contentious legal matters.

Matthias Heusser

Matthias Heusser has been a partner at ws&p since 2025. He advises clients on all aspects of Swiss tax law. His focus areas are predominantly taxes on real estate and advising legal entities. He also provides natural persons and legal entities with support in tax planning and completing tax returns.

Nicole Hirzel advises our client in matters of taxation and wealth planning. Her main focus is on advising private clients on income, wealth and property gains tax. She has many years of professional experience in Switzerland and abroad, most recently as CFO of a family office and as a tax consultant in a trust company.

Anna Leibacher works as a junior associate in our law firm and supports our lawyers in all areas of law. She graduated from the University of Basel and has already completed various internships. Having worked at a district court, Anna Leibacher has practical experience in procedural law. After completing her year as an articled clerk, Anna Leibacher will take her bar exam.

Manuel Mühlestein

Manuel Mühlestein has been a partner at ws&p since 2025. His main areas of expertise are inheritance law, contract and corporate law. He primarily advises on matters of estate planning and execution, as well as contract drafting and enforcement, in particular rental and employment contracts. Due to his previous work as a law clerk at the District Court of Zurich and as an attorney in the litigation team of a leading business law firm, he has extensive experience in civil procedure and in debt collection and bankruptcy law. He acts in an advisory and litigating capacity and also as an executor.

Dominique Ott specialises in inheritance law. In addition to her advisory role in estate planning (prenuptial and inheritance agreements, wills, etc.), she regularly represents clients in inheritance proceedings in court and acts as an executor and heir representative. She also has extensive expertise in real estate law, child and adult protection law, and tax law (inheritance tax, gift tax and property gains tax). Dominique Ott has been a partner at weber schaub & partner ag since 2023.

Peter Schaub is a founding partner of ws&p. He focuses on tax and inheritance law. He prefers to advise individuals and businesspeople as a “family lawyer”. He also acts as a director for various listed and non-listed Swiss companies and, in this function, has extensive knowledge and considerable practical experience

Martin Schmidlin

Martin Schmidlin has been a partner at ws&p since 2001. He supports national and international companies as well as private individuals with their tax matters. He is a certified tax expert and focuses his work on corporate tax law and tax planning for natural persons in a national and international context. As a graduate business economist, Martin Schmidlin contributes important business perspectives to the tax assessment of matters at hand. He holds several management board and director mandates in various areas.

Marcel Schweizer

Marcel Schweizer primarily deals with tax law for natural persons. He advises clients on tax planning options and preparing tax returns. He also represents them in assessment procedures before tax authorities. Marcel Schweizer has many years of experience with expats and supports clients in supplementary tax proceedings or the administration of estates.

Tamara Simmen primarily focuses on tax law for natural persons. She has many years of experience in international tax and social security law and assists clients in the preparation of tax returns and tax planning.

Andrea Tina Weber

Andrea Tina Weber specialises in advising and representing private clients, banks and family offices in all matters concerning estates, trusts and foundations. She represents clients in civil litigations, whether disputes are domestic or international, including matters of foundation law, matrimonial property law as well as adult protection law proceedings. She also advises on estate planning and structuring (wills, marriage contracts, business succession, international estate planning) as well as on trusts and foundations. She regularly publishes and gives presentations on inheritance law topics in Switzerland and abroad.

Werner Weber is a founding partner of weber schaub & partner. He prefers to practise company and contract law as well as tenancy and property law with a focus on private construction law. He provides advice and acts in court in a litigating capacity. He holds the title of SAV Mediator. He holds several mandates as board member for national and international companies from different sectors.