Maryland Statutes
Subtitle 5 - Stock Restrictions
Section 4-502 - Certain Securities and Stock Options Prohibited

A close corporation may not have outstanding any:
        (1)    Securities which are convertible into its stock;
        (2)    Voting securities other than stock; or
        (3)    Options, warrants, or other rights to subscribe for or purchase any of its stock, unless they are nontransferable.