Maryland Code, Insurance § 4-203

(1) acceptance of service of process;

(2) surplus lines insurance;

(3) a transaction for which a certificate of authority is not required under § 4-101(b) of this title;

(4) reinsurance, as authorized under Title 5, Subtitle 9 of this article;

(5) an adjuster while providing services with respect to a claim under a policy lawfully solicited, issued, and delivered outside of the State; or

(6) the professional services of an attorney at law.

(1) solicit, negotiate, or effect insurance or an annuity contract;

(2) inspect risks;

(3) fix rates;

(4) investigate or adjust losses;

(5) collect premiums; or

(6) transact insurance business in any other manner.