(a) Subject to subsections (b) and (c) of this section, the legislative body of a municipality may enlarge its boundaries by annexation as provided in this subtitle. (b) The power of annexation applies only to land that: (1) is contiguous and adjoining to the existing boundaries of the municipality; and (2) does not create an unincorporated area that is bounded on all sides by: (i) real property presently in the boundaries of the municipality; (ii) real property proposed to be in the boundaries of the municipality as a result of the proposed annexation; or (iii) any combination of real property described in item (i) or (ii) of this item. (c) A municipality may not annex land that is in another municipality.
Maryland Legal Code