If you are a first time overseas buyer it is important to manage you cashflow properly and travel over and find a very good rental management company.
The bigger the portfolio, the more work. A property investment certainly perform more consistently than most asset classes with average increases world wide of 8.5%. While this does not seem that high, the leveraging factor is what makes it attractive.
Why dont you consider a location like Germany for example. Lower risk investment location, rental management companies can very good, rental yields high- only negative factor is the low LTV financing option for foreign buyers which is around 60%.
If you are a first time overseas investor this may be the one of the 'lower risk' locations and it is easy to get to if there is any major problems.
Additional locations which should would be lower risk is the likes of Sweden, UK, Northern Ireland, Canada. The legal system is much more transparent and you can do your research it much easier as information is readily available.