Maryland Code, Election Law § 8-805

(a)(1) If, after the primary election but before the general election, a nominee dies, declines the nomination, or becomes disqualified before the ballots are printed or at a time when the ballots can be reprinted, the name of the nominee may not appear on the ballot.

(2) If the number of remaining nominees is less than the number of offices to be filled, a new nominee shall be appointed in the same manner as provided in the Education Article for filling a vacancy on the board of education.