My girlfriend is a Taiwanese citizen works for a US based company from Taiwan. She wants to visit me for up to 90 days on an ESTA tourist visa.
While shes here she wants to sightsee, hang out with me, and work part time remotely from the hotel/apartment, note that she is an independent contractor for her company.
Is working part-time somehow illegal? From my understanding this is incredibly vague and I have searched for hours for a similar situation but have not found anything. Any advice with experiences or links to US laws would be very much appreciated. Thank you for your help.