Md. Code Ann., Bus. Reg. § 12.5-503
A licensed locksmith or employee of a licensed locksmith may not fail in any material respect to complete the installation, repair, opening, or modification of a lock for the price stated in the contract for services.
Added by Acts 2009, c. 551, § 1, eff. Oct. 1, 2009; Acts 2009, c. 552, § 1, eff. Oct. 1, 2009.