If we torch the hives and scrape and clean them will it be ok to use them or could there be a chance that diseases could still be intact? they have been exposed to freezing temperatures
It is better to scrape them first then torch.
Have there been out breaks of American foul brood in the area?
Freezing doesn't kill viruses, only bugs and insects
Welcome to the forum, but you probably should have started a new post for your questions
Good luck with you beekeeping, you will have a lot of fun