Corrective Probate Administration

Has someone probated an estate – without the will?
With the wrong will?
With an invalid, or unduly procured will?
Having agreed that there is no will, but having forgotten quite all of their relatives?

If so, I can straighten this out (probably).  The difficulty will differ depending upon the cooperation of the original petitioner for probate, and what has become of them, and the assets, since the improper administration – but most things can be set right.