Foreigner buying a single family with cash

[Franz Isak Bergmann Ingolfsson]

Hello everybody,
My name is Franz and I'm from Iceland, I want to buy a single family house in Houston, TX for $200k, does anyone have any experience with foreigners buying real estate in the US? I realized that I would get more ROI through buying a single family house in Houston with cash than a single family in Iceland, similar houses in Iceland are going for $800k and you have to have a down payment of $325k and monthly payments of $2250 and rents for $2150 if I'm lucky.

Best regards