United Arab Emirates is pretty good!
0% and legal as long as it was not obtained illegally.
In the United Arab Emirates, taxes are included in the standard of living. In these countries, real estate is very expensive, legal services for registering companies, medicine, education and real estate rental are also expensive. 4-5 months of the year it is very hot there, and if you are not used to temperatures of 50 degrees Celsius during the day, then it will be very difficult for you.
Not more than in most big western countries.
Some prices are lower such as construction and home services.
I saw OK flats at 500$/month.