Maryland Election Law Section 13-202

      (a)      Unless otherwise expressly authorized by law, all campaign finance activity for an election under this article shall be conducted through a campaign finance entity.

      (b)      (1)      Subject to paragraph (2) of this subsection, an individual may not file a certificate of candidacy until the individual establishes, or causes to be established, a campaign finance entity.

            (2)      The campaign finance entity required by paragraph (1) of this subsection may be either:

                  (i)      a personal treasurer; or

                  (ii)      a political committee that is an authorized candidate campaign committee.