Unfortunately they have you by the balls. These types of companies have been doing this within the communities they’ve owned for years. Retired folks are hardest hit.
Yes manufacture homes can be moved. But once these things are trailer in and locked down, they never fit back together right if moved. It can be done, but you’re better off buying a new one.
As a Florida resident, living on the Gulf Coast you more than likely have insurance on your home. Suggestion stop making the monthly rent payments. Find one of those foreclosed condos on the cheap and buy it. Make sure you fall asleep with a cigarette in your hand and burn the mobile down. The insurance company should pay you out.