Why is it of any concern to him what animals you keep if he doesn't even live there..? That really irks me and it's not even my problem. Just tell him you enjoy having them and in actuality there is a good chance your prolonging their lifespan, because of the lack of threats from predators and disease. He obviously has no idea what he's talking about.

The Cubans are dangerous? Only way they could be dangerous is if you let them go, you know, since they're an invasive species. From the sounds of it, that's what he's suggesting you do. Let them go... yeah, that makes sense. I'd just tell him to mind his own business. You're not under his roof anymore, sounds like he needs to come to terms with that. You have these animals because you like them and they make you happy, whats the problem with that? As long as you take good care of them, there should be no issue. I could see him being bothered if you were a terrible keeper, but I don't think that's the case.