Maryland Code, Commercial Law § 12-1403

(a) If a business entity cancels a merchant processing agreement before the expiration of the initial term agreed on by the credit card processor and the business entity, the credit card processor may not assess or charge a fee, fine, or penalty that exceeds $500.

(b) If a business entity terminates the merchant processing agreement after the expiration of the initial term agreed on by a credit card processor and a business entity, the credit card processor may not assess a fee, fine, or penalty, unless a credit card processor and a business entity have entered into a separate renewal merchant processing agreement.

(c) Subject to subsection (d) of this section, a merchant processing agreement shall disclose clearly and conspicuously in bold, 12 point font the following information:

(d) The information required under subsection (c) of this section shall be:

(e) The credit card processor shall provide a copy of the merchant processing agreement in electronic or paper form to the business entity at the time the business entity signs the merchant processing agreement.