On steuerberater.de, find a tax advisor in Berlin specializing in 'Internationales Steuerrecht' (International Tax Law). Confirm that the search interface allows you to enter 'Berlin' as the city and select 'Internationales Steuerrecht' under 'Tätigkeitsfelder' (Fields of Activity).
Navigate to steuerberater.de. Wait for the page to fully load and become interactive. Locate the text input field for 'Stadt' (city) and confirm its presence. Locate the 'Tätigkeitsfelder' (Fields of Activity) button or section and confirm its presence. If 'Tätigkeitsfelder' is a button, click it to expand the list. Locate the checkbox for 'Internationales Steuerrecht' within the 'Tätigkeitsfelder' list and confirm its presence.
The agent successfully navigates to steuerberater.de and the page loads fully, displaying interactive elements. The agent identifies and confirms the presence of the 'Stadt' (city) input field. The agent identifies and confirms the presence of the 'Tätigkeitsfelder' (Fields of Activity) section or button. The agent successfully expands the 'Tätigkeitsfelder' section if it's initially collapsed. The agent identifies and confirms the presence of the 'Internationales Steuerrecht' checkbox within the 'Tätigkeitsfelder' list.