The only type of lawsuit for which anyone would have standing would be a guardianship challenge. Greer seems to deem the guardianship challenge irrelevant, notwithstanding Michael's clear violations of the guardianship statutes.
Proper sequence of events should be (1) File guardianship lawsuit; (2) HINO gets replaced with honest guardian; (3) honest guardian has standing to file motions to protect Terri. But the Great High Omnipotent Unstoppable Lord Almighty George Greer (GHOULAGG) has decreed that Michael is a perfect guardian, probably in part because any other guardian would complain that GHOULAGG hasn't properly handled Terri's accounts.
a guardian ad litem is not a lawyer, she never had a lawyer and that is why she is in this mess. The congress is trying to give her her 14th amendment right to due process because she has not had any up to this point.