Maryland Code, Commercial Law § 22-109

(a) The parties in their agreement may choose the applicable law.

(b) In the absence of an enforceable agreement on choice of law, the following rules determine which jurisdiction's law governs in all respects for purposes of contract law:

(c) In cases governed by subsection (b) of this section, if the jurisdiction whose law governs is outside the United States, the law of that jurisdiction governs only if it provides substantially similar protections and rights to a party not located in that jurisdiction as are provided under this title. Otherwise, the law of the state that has the most significant relationship to the transaction governs.

(d) For purposes of this section, a party is located at its place of business if it has one place of business, at its chief executive office if it has more than one place of business, or at its place of incorporation or primary registration if it does not have a physical place of business. Otherwise, a party is located at its primary residence.