To obtain an E-2 visa as a Portuguese investor, you first travel to the U.S. under ESTA or the Visa Waiver Program, then conduct market research and seek legal and financial advice. Following this, you register your business, obtain a FEIN, and open a corporate bank account, before identifying and transferring capital funds for investment. Finally, you apply for the E-2 visa through the U.S. Consulate in Lisbon. Benefits of the visa include a five-year duration, Social Security Numbers, employment authorization for spouses, educational benefits for children, access to U.S. capital markets, and the ability to sponsor Portuguese employees. Business models range from real estate to tourism and consultancy, offering Portuguese investors the opportunity to develop businesses in the U.S. and immerse themselves in American life.