I don't know the concrete reason for the failing of the other projects, but we have analyzed many Real-Estate ICOs and the problem with many project seemed to be: They have offered investment in properties in several countries. And that is very complicated! investing in real estate demands a good understanding of the legal situation around doing business in a country. Furthermore you need a deep understanding of the economic situation of the country. That's why we concentrate on the country that we know and were we live.