Md. Code, Insurance § 19–307

(a) (1) An antiarson application required under this subtitle is a material part of the policy to which the application pertains.

(2) A material misrepresentation in an antiarson application is grounds to rescind the policy.

(b) (1) Within a reasonable time as specified by the Commissioner, a policyholder shall notify the policyholder’s insurer in writing of any change in the information contained in an antiarson application.

(2) A material failure to give the notice required in paragraph (1) of this subsection, or a material misrepresentation in a notification, is grounds to rescind the policy.