2016 SUBARU IMPREZA Suspension Problems

Hello, I just purchase this vehicle from a dealership, 615 auto sales. After purchasing the vehicle I decided to go and get the recall done that was never done to the vehicle at the repair shop they did the recall but then ask me where did I purchase this vehicle from then I told them. The repair shop told me the grim news that the car was very rusted and should have not been sold like it was. There was nothing on the CARFAX about anything else and the shop told me that the car was a safety hazard. When I purchase the vehicle AS IS all I have seen was a TPM light on and a recall and getting some tires they were also bad but did not have any knowledge of how bad the frame was even there were rust in the engine bay area like it been...

MY CAR SHAKES WHEN I DRIVING THE CAR AND WHEN I AM WAITING FOR THE LIGHT TO CHANCE USING THE BRAKES AND AC IT LOOKS LIKE TURN IN OFF .I WENT TO THE DEALER THEY SAID IS NORMAL BUT I BOUGHT THE CAR NEW NEVER SHAKE I JUST WORRY HAVE TO DO SOMETHING WITH THE BRAKES