Truing doors

I have run into this issue on a couple of fridges when I have taken doors apart that have the textolite strips.  In both cases, the doors lined up perfectly before I disassembled them, but there were gaps at one of the corners once I put them together.  I've tried adjusting the loosening some of the screws adjusting the latch and other things with modest improvement, but Iv'e never been able to achieve the fit that existed before my "repair."

Is there a proper order and method of replacing the textolite screws that will ensure the door doesn't get tweaked?  I apologize if I am missing something obvious.