Maryland Family Law Section 5-3A-24
§ 5-3A-24.
CAUTION: READ FULL TEXT OF SECTION FOR SPECIAL NOTE
** SPECIAL NOTE: EFFECTIVE - JANUARY 1, 2006 - CHAPTER 464 - 2005 **
  If a petitioner becomes aware, after a court rules on a petition, that a condition of consent under § 5-3A-18(b) of this subtitle cannot be fulfilled, the petitioner promptly shall:
    (1)   file notice with the court;
    (2)   give notice to all of the other parties; and
    (3)   (i)   if the unit or person enters into a new consent, file the consent with the court;
      (ii)   if the unit or person fails to enter into a new consent, ask the court to set aside the guardianship order; or
      (iii)   if the unit or person cannot be located after exhaustion of the service requirements under § 5-3A-15 of this subtitle, ask the court to determine whether it is in the child's best interests to continue the guardianship despite the inability to fulfill the condition.