But why isn't Gaddy in trouble for misrepresenting herself and
encroaching on the next of kins' rights?
As a practical matter, the wheels of justice turn slowly.
As a family matter, all involved may prefer to turn the other cheek and be content with limiting her participation in serious decision making, etc. Mae may love her granddaughter. I think she does. There are effective ways to manage human imperfection that are short of "throwing the book" at the offender.