Bürgi Hotz Zellweger Attorneys at Law, BHZ for short, is a leading law firm in Eastern Switzerland that advises private individuals, companies, authorities and associations from Switzerland and abroad and represents them in court. As public notaries, we carry out notarizations and certifications. We also offer mediation services. From our central location in Frauenfeld (close to Kloten Airport, Zurich, Winterthur and Constance), we operate primarily in the cantons of Thurgau, Zurich, St. Gallen and Schaffhausen.