Maryland Election Law Section 12-102

      (a)      An opposing candidate of the petitioner under § 12-101 of this subtitle may file a counterpetition if:

            (1)      the petition filed under § 12-101 of this subtitle did not specify all of the precincts in which the office was on the ballot; and

            (2)      on completion of the recount, the winner of the election is changed.

      (b)      A counterpetition shall be a request for a recount of the votes for the office in the precincts not specified by the petitioner under § 12-101 of this subtitle.

      (c)      The opposing candidate shall file the counterpetition with the board with which the candidate's certificate of candidacy was filed.

      (d)      The petition must be filed within 2 days of the determination under subsection (a)(2) of this section.

      (e)      (1)      The State Board shall promptly notify each appropriate local board of a counterpetition that is filed with the State Board.

            (2)      A local board shall promptly notify the State Board of a counterpetition that is filed with the local board.