Md. Code Ann., Cts. & Jud. Proc. § 12-306

The purpose of §§ 12–307 and 12–308 of this subtitle is to allocate appellate jurisdiction between the Supreme Court of Maryland and the Appellate Court of Maryland. Except as expressly provided in those sections, nothing in them creates or abrogates a right to appeal or otherwise invoke appellate jurisdiction granted by the laws of the State.