District of Columbia Code Division II. Judiciary and Judicial Procedure § 16-904. Grounds for divorce, legal separation, and annulment.

(1) where such marriage was contracted while either of the parties thereto had a former spouse living, unless the former marriage had been lawfully dissolved;

(2) where such marriage was contracted during the insanity of either party (unless there has been voluntary cohabitation after the discovery of the insanity);

(3) where such marriage was procured by fraud or coercion;

(4) where either party was matrimonially incapacitated at the time of marriage without the knowledge of the other and has continued to be so incapacitated; or

(5) where either of the parties had not attained the age of legal consent to the contract of marriage (unless there has been voluntary cohabitation after attaining the age of legal consent), but in such cases only at the suit of the party who had not attained such age.