9. Panama
Panama is the southernmost county is Central America. Panama uses the dollar as a currency, so there are no fluctuating exchange rates.
It tends to be a very friendly country to expats with low to non-existent taxes and excellent medical care. In fact, Punta Pacifica, the best hospital in the country is affiliated with John Hopkins.
Unless you live in Panama City, homes and cost of living is very affordable. Panama tends to be a fairly safe country.