Maryland Courts and Judicial Proceedings Section 5-102
(a)   An action on one of the following specialties shall be filed within 12 years after the cause of action accrues, or within 12 years from the date of the death of the last to die of the principal debtor or creditor, whichever is sooner:
(1)   Promissory note or other instrument under seal;
(2)   Bond except a public officer's bond;
(5)   Contract under seal; or
(6)   Any other specialty.
(b)   A payment of principal or interest on a specialty suspends the operation of this section as to the specialty for three years after the date of payment.
(c)   This section does not apply to a specialty taken for the use of the State.