Md. Code, Business Regulation § 6–617

A professional solicitor or associate solicitor may not solicit charitable contributions for or in the name of a charitable organization unless the professional solicitor or associate solicitor:

(1) has written authorization that contains:

(i) the consent of 2 officers of the charitable organization;

(ii) the signature of the professional solicitor; and

(iii) an express statement of the term of the authorization;

(2) submits a copy of the authorization to the Secretary of State; and

(3) on request, shows a copy of the authorization and personal identification to a person who is solicited.