Maryland Code, Local Government § 5-205

(a)(1) A municipality may provide for the control and management of its finances.

(2) The municipality may:

(b)(1) A municipality may spend money for any public purpose and to affect the safety, health, and general welfare of the municipality and its occupants.

(2) Except as provided in paragraph (4) of this subsection, a municipality may not spend money under paragraph (1) of this subsection if the money was not appropriated at the time of the annual levy.

(3) Except as provided in paragraph (4) of this subsection, a municipality may spend money only for the purpose for which the money was appropriated.

(4) A municipality may spend money for a purpose different from the purpose for which the money was appropriated or spend money not appropriated at the time of the annual levy if approved by a two-thirds vote of all the individuals elected to the legislative body.

(1) the purchase of materials, supplies, and equipment through the Department of General Services;

(2) municipal advertising;

(3) printing and publishing statements of its receipts and expenditures; and

(4) codifying and publishing laws, ordinances, resolutions, and regulations.

(d)(1) Except as otherwise provided under this article, the Tax--General Article, and the Tax--Property Article, a municipality may establish and collect reasonable fees and charges:

(2) A municipality may provide that any valid charge, tax, or assessment made against real property in the municipality is a lien on the property to be collected in the same manner as municipal taxes.

(1) the joint administration of the municipalities;

(2) the cooperative procurement of goods and services, including construction services;

(3) the provision of municipal services; and

(4) the joint funding and management of any project that is centrally located to the municipalities.