Md. Code, Election Law § 10–313

(a) In any general election or special general election, a voter may write in a name for any office.

(b) (1) When requested by a voter, an election judge shall provide information on write-in voting.

(2) (i) If a voter requests information on write-in voting, an election judge shall assure that the voter is fully informed of the procedure before voting.

(ii) If a voter is unable to write, the voter may have assistance as provided in § 10-310(c) of this subtitle.