It can be difficult to get into some of the Commonwealth nations. Costa Rica is popular. Have a friend who is retiring down there in several years.
Costa Rica, I heard, is kind of dicey these days. I’ve heard about bad infrastructure and resentment towards Americans, i.e., crimne. I am happy to be wrong about that. I hope your friend has gotten good information.
Here’s an article I found on nearby Nicaragua. Please pass it on to him. ( I get Google alerts on living abroad in Central America .)
Now I know it is difficult to get into the commonwealth nations. Good for them. Oh, wait, except for that Muslim thing...