Md. Code, Estates and Trusts § 5–802

A petition for admission of a copy of a will may be filed with the court at any time before administrative or judicial probate if:

(1) The original executed will is alleged to be lost or destroyed;

(2) A duplicate reproduction of the original executed will, evidencing a copy of the original signatures of the decedent and the witnesses, is offered for admission; and

(3) All the heirs at law and legatees named in the offered will execute a consent in the manner set forth in § 5–803 of this subtitle.