Here’s a good article about USA citizens paying taxes while living abroad, especially Italy: https://protaxconsulting.com/blog/us-expat-taxes-filing-as-american-living-in-italy/
Remote work visas around the world:
Spain visa for digital nomads:
Maybe the USA is not right for you. HSBC gives mortgage loans to US citizens for abroad! https://internationalservices.hsbc.com/buy-property-abroad/
You’ll need to put down 25% or higher down payment. Available in 11 countries.
If you’re not a US resident, but want to buy property in the USA, see American Mortgages: https://www.americamortgages.com/foreign-national-overseas/
You’ll need to put down 30% or higher down payment.
Spain real estate site is idealista.com Portugal is https://www.idealista.pt/en/ Italy is https://www.idealista.it/en/