Maryland Transportation Section 15-312
§ 15-312.
  (a)   A dealer or an agent or employee of a dealer may not permit any individual to road test a motor vehicle if he knows that the other individual does not have a license to drive of the appropriate class.
  (b)   A dealer or an agent or employee of a dealer may not make any material misrepresentation in obtaining a vehicle sales contract.
  (c)   A dealer or an agent or employee of a dealer may not commit any fraud in the execution of or any material alteration of a contract, power of attorney, or other document incident to a sales transaction.
  (d)   A dealer or an agent or employee of a dealer may not prepare or accept any promissory note or other evidence of indebtedness on a vehicle sales contract knowing that it requires the debtor to pay an amount greater than that agreed on in the written contract for the sale of the vehicle.
  (e)   A dealer or an agent or employee of a dealer may not willfully fail to perform, without justification, any vehicle sales contract.
  (f)   A dealer or an agent or employee of a dealer may not materially deviate from or disregard, without the consent of the buyer, any of the original terms of the contract.
  (g)   A dealer or an agent or employee of a dealer may not willfully fail to comply with the terms of a warranty or guarantee.
  (h)   A dealer or an agent or employee of a dealer may not rent a dealer registration plate issued by the Administration.