Tom,
Nice job with straightening the flange.
If you need to press the bracket back and square, remove the screws drill the angle to allow for the screw threads, clamp an angle iron where you want the crease and tap the plate back to it.
To pull the drop edge forward you might clamp an angle to the flange with the top of the angle where you need the crease, lift the angle slightly and tap the top down.
To much bending will weaken the metal so caution with to much working, Don't hammer on the edge of the angle the angle will act as a chisel into metal the hammer.
__________________
Doug
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