Maryland Commercial Law Section 19-103
§ 19-103.
  (a)   A supplier may not directly or through an officer, agent, or employee terminate, cancel, fail to renew, or substantially change the competitive circumstances of a contract without good cause.
  (b)   (1)   Except as provided in paragraph (2) of this subsection, a supplier who terminates, cancels, fails to renew, or substantially changes the competitive circumstances of a contract with good cause is not required to provide any notice or the right to cure a deficiency to a dealer.
    (2)   If a supplier terminates, cancels, fails to renew, or substantially changes the competitive circumstances of a contract based upon the dealer's failure to capture the share of the market required in the contract and the supplier has worked with the dealer for a minimum of 12 months to gain the desired market share, the supplier shall provide a dealer with at least 90 days' written notice of the termination of the agreement and a 60 day right to cure.
  (c)   Notwithstanding any agreement to the contrary, a dealer who terminates a contract with a supplier shall notify the supplier of the termination within 90 days prior to the effective date of the termination.
  (d)   Each notification required under this section shall:
    (1)   Be in writing;
    (2)   Contain:
      (i)   A statement of intention to terminate the contract;
      (ii)   A statement of the reasons for the termination; and
      (iii)   The date on which the termination takes effect; and
    (3)   Be delivered to the supplier or dealer by:
      (i)   Certified mail; or
      (ii)   Personal delivery.