Investing non-residents

• what is so special about Interactive Brokers?

• https://www.whitecoatinvestor.com/can-non-residents-open-brokerage-accounts-in-the-us/

• https://www.expatfinance.us/united-states/us-foreign-taxation

ROTH IRA:

• https://akifcpa.com/can-i-make-roth-ira-contributions-with-foreign-earned-income/
• https://www.irs.gov/individuals/international-taxpayers/individual-retirement-arrangements