> How many other Belize defuncts do they have?  How many offshore countries like Belize are there in the region?

Based on my cursory knowledge of offshore corporate registrations in Belize, Panama and the Cayman Islands, identifying those locations which are only mailboxes versus actual business office addresses should not be overly complicated or difficult.

In the era of Google Street View for most major urban areas the initial search process can be done remotely, such as when it appears that dozens of companies occupy one street address of a very small office building.