There are investment prospects in the overseas housing market, but it is essential that you seek independent expert professional advice before undertaking any property purchase. There are lots of things to bear in mind, including local laws and regulations, taxes, surveyor's assessments of the building, financial currency exchange, dealing with interbank transfers, volatity of the housing market, etc. etc. In some countries there are various restrictions on foreigners owning land or property, so this needs to be checked out fully. Any property purchase is a major undertaking.
It may seem obvious but it's well worth going on holiday to a country several times to see if you like it.
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