Thank you for your reply. I'm aware of the DTV but have not really considered it much, however you are right, it could be a good choice. In the future my wife and I would like to open a small guesthouse (4 rooms max) I'm guessing at that point I would need to change to a visa that allows work permits but otherwise the DTV is probably ideal. From reading the article you linked it seems you have to leave the country every 180 days?