Maryland Code, Estates and Trusts § 8-103

(a) Except as otherwise expressly provided by statute with respect to claims of the United States or the State, a claim against an estate of a decedent, whether due or to become due, absolute or contingent, liquidated or unliquidated, founded on contract, tort, or other legal basis, is forever barred against the estate, the personal representative, and the heirs and legatees, unless presented within the earlier of the following dates:

(b) A claim for slander against an estate of a decedent that arose before the death of the decedent is barred even if an action was commenced against and service of process was effected on the decedent before the decedent's death.

(c) A claim against the estate based on the conduct of or a contract with a personal representative is barred unless an action is commenced against the estate within 6 months after the date the claim arose.

(d) Nothing in this section shall affect or prevent an action or proceeding to enforce a mortgage, pledge, judgment or other lien, or security interest on property of the estate.

(e) If the decedent had been duly served with process before the decedent's death, nothing in this section shall affect an action for injuries to the person or damage to property that was commenced against the decedent.

(f) A claim filed by the Maryland Department of Health against the estate of a deceased Maryland Medical Assistance Program recipient, as authorized under § 15-121(a) of the Health--General Article, is forever barred against the estate, the personal representative, and the heirs and legatees, unless the claim is presented within the earlier of the following dates: