Yes it is. The DCF has the authority to act immediately, and they should. Terri is in a dire emergency, one caused by her 'guardians' be it MS or Greer. If it's Greer, then he obviously cannot be the judge for the hearing after her removal. (I say this but haven't looked up the Florida statutes. It is Florida afterall, I may be in for a surprise.)
As you said though, Greer acting as guardian himself should be illegal. Heck, I think it should be illegal for lawyers to donate to judicial campaigns as Felos did to Greer this last election.
my understanding is that once DCF files everything starts back to square one. It will be taken in front of another judge. But we must not forget about the law that congress passed this weekend about how everything must be looked at from the beginning.
It is now Thursday, but Good Friday is not a government holiday, but it may be a state holiday. Does anyone know if it is a State Holiday for Florida?