Maryland Estates and Trusts Section 5-402

      A proceeding for judicial probate shall be instituted at any time before administrative probate or within the period after administrative probate provided by § 5-304.

      (a)      At the request of an interested person;

      (b)      By a creditor in the event that there has been no administrative probate;

      (c)      If it appears to the court or the register that the petition for administrative probate is materially incomplete or incorrect in any respect;

      (d)      If the will has been torn, mutilated, burned in part, or marked in a way as to make a significant change in the meaning of the will;

      (e)      If it is alleged that a will is lost or destroyed.