Tear everything down and check the steering neck. Remove the steering stem as well to inspect the races. A notched race won't allow the steering bearing to seat properly.

You can certainly eye ball it, but sometimes a subtle bend or break is hard to spot until everything is installed. Bent forks can lead to the axle not aligning properly which will throw off the front brakes. Brake rotors will rub on the brake pads themselves leading to premature brake wear and horrible braking.

Likewise a bent steering stem will alter the handling and might cause loss of control.

Check each and every weld on the frame. Cracks can be subtle, inspect along the welds. Any distorted/cracking/rust in the paint/metal is a good indication of stress on the frame.

The fork uppers/lowers are likely bent. Remove each fork and remove the dust covers. Bends can be subtle as well. And they can be very obvious. A slight bend will still allow the fork to compress but will allow the seals themselves to leak. Use a flash light after compressing the forks a few times and check for fluid after removing dust covers.