Maryland Estates and Trusts Section 5-702
§ 5-702.
  An election for modified administration may be filed by a personal representative of an estate within 3 months from the date of appointment, if:
    (1)   All residuary legatees of a testate decedent and the heirs at law of an intestate decedent are limited to the:
      (i)   Decedent's personal representative; and
      (ii)   Individuals or entities exempt from inheritance tax in the decedent's estate under § 7-203(b), (e), and (f) of the Tax - General Article;
    (2)   All trustees of each trust that is a residuary legatee are limited to the decedent's:
      (i)   Personal representative;
      (ii)   Surviving spouse; and
      (iii)   Children;
    (3)   The estate is solvent and sufficient assets exist to satisfy all testamentary gifts;
    (4)   A verified final report under modified administration is filed within 10 months from the date of appointment;
    (5)   Final distribution of the estate can occur within 12 months from the date of appointment; and
    (6)   All residuary legatees of a testate decedent and the heirs at law of an intestate decedent consent to a modified administration as required under § 5-706 of this subtitle.