Md. Code, Family Law § 10–357

(a) In a support proceeding under this part, the Child Support Administration of this State shall:

(1) transmit and receive applications; and

(2) initiate or facilitate the institution of a proceeding regarding an application in a tribunal of this State.

(b) The following support proceedings are available to an obligee under the Convention:

(1) recognition or recognition and enforcement of a foreign support order;

(2) enforcement of a support order issued or recognized in this State;

(3) establishment of a support order if there is no existing order, including, if necessary, determination of parentage of a child;

(4) establishment of a support order if recognition of a foreign support order is refused under § 10–361(b)(2), (4), or (9) of this subtitle;

(5) modification of a support order of a tribunal of this State; and

(6) modification of a support order of a tribunal of another state or a foreign country.

(c) The following support proceedings are available under the Convention to an obligor against which there is an existing support order:

(1) recognition of an order suspending or limiting enforcement of an existing support order of a tribunal of this State;

(2) modification of a support order of a tribunal of this State; and

(3) modification of a support order of a tribunal of another state or a foreign country.

(d) A tribunal of this State may not require security, bond, or deposit, however described, to guarantee the payment of costs and expenses in proceedings under the Convention.