Md. Code, Financial Institutions § 9–301

(a) A member of a savings and loan association means a holder, as shown on the association’s records, of:

(1) One or more savings accounts, as to a mutual association; and

(2) One or more shares of capital stock, as to a capital stock association.

(b) (1) Multiple holders of a single account or share of capital stock shall be considered a single member.

(2) Notice to one holder of a multiple name account or share of capital stock is sufficient notice to all holders.