It sounds like you're in a really tough situation with a lot of legal and personal stress. It's understandable that you’re trying to find a way to get your guns back without breaking any laws, especially considering your past felony charge. The idea that Adam suggested, involving an FFL to transfer the guns to a different state temporarily, could be a way to work around the restrictions, but it’s important to be cautious. The legal details surrounding gun transfers and ownership rights are tricky, and anything that even remotely looks like circumvention could cause further legal trouble.
I totally get the worry about your dad doing something that might make things worse. It can be really frustrating when other people don't fully understand the legal complexities of these situations. It might help to have a calm conversation with him about the potential consequences and what could happen if the guns are handed over to the police or otherwise mishandled.
If you're unsure about the specifics of how to handle the situation, it could be worth consulting a lawyer who specializes in gun laws to make sure you're navigating things correctly and staying within legal boundaries.
In any case, I hope you're able to resolve this without further complications!