Thats not true. Its not indefinitely. After 6 months they will start asking for proof of income, and can and have revoked any further visas if you cant comply. They may not do this to everyone but they do it to a lot.
Yes, I agree, you have to renew every 30 days........but I thought that you could do that for 12 months.........correct me if I'm wrong.
I did it until I got my residency for almost 2 years.
Never did I have to show any income or anything but a passport.
Some of the Immigration people can be resentful and will arbitrarily mess with you if you don't go in with hat in hand.
If you can keep your ego in check, stroke them right, you can probably renew for the rest of your life.
Laws in Belize are summarily broken at the drop of a hat by citizens, visitors with connections, and officials alike.
AmbergrisCaye.com 
