What to do if you find out your car s miles have been rolled back?

So a few months ago, i went to a Dealership called Blessed Auto Outlet in Florida to buy a 2003 Acura 3.2TL Type S. when I bought it, the title said Exempt for miles, and I was told the reason for that is that a new engine had been put in, the odometer showed 150k miles and I thought nothing of it. fast forward a few months, and the car is at 163k miles, and had a new engine put in at 162500, and is showing signs of transmission slipping, so decide to try my luck, and go trade it in at another dealership to get a different car, the dealer checks my VIN, and it shows that when my car s odometer was checked, it had 292k miles, AND that there was a problem with the title. assuming it had the miles rolled back from 292k to 150k before I bought it, that would mean the odometer was rolled back by 142k miles (this is a digital odometer, I don t even know how they did that!). so now I find out I spent $3000 on a car I wouldn t have spent $1000 on (I tend to stay away from high milage cars, as I don t want to have to replace engines and transmissions, which as I mentioned earlier, I did, and will have to do.) So what can I do now? is it illegal for me to own a car with a rolled back odometer in the state of florida (which is where I am) what can I do about this situation? I did post on FB about it, and said I was so angry that I wanted to sue the **** out of Blessed Auto Outlet (the dealer who sold me this car) only for them to pm me saying they talked to their lawyers already........