P.R. Laws tit. 31, § 321
The causes for divorce are:
(1) Adultery on the part of either of the parties to the marriage.
(2) Punishment by imprisonment of one of the spouses for a felony, except when said spouse receives the benefit of a suspended sentence.
(3) Habitual drunkenness or the continued and excessive use of opium, morphine, or any other narcotic.
(4) Cruel treatment or grave injury.
(5) Abandonment of the wife by the husband or of the husband by the wife, for a longer period of time than one year.
(6) Absolute, perpetual, and incurable impotency occurred [occurring] after marriage.
(7) Attempt of the husband or wife to corrupt their sons or to prostitute their daughters and connivance in their corruption or prostitution.
(8) Proposal of the husband to prostitute his wife.
(9) Separation of both spouses for an uninterrupted period of more than two (2) years. After the separation for the expressed period of time of more than two (2) years has been satisfactorily proven, neither of the spouses shall be considered to be guilty nor innocent when the judgment is rendered.
(10) Incurable insanity of either of the parties to the marriage, supervening after the marriage, for a period of more than seven (7) years, when it seriously prevents the spouses living together spiritually, if such insanity is satisfactorily established at the trial by the opinion of two (2) medical experts; Provided, That in such cases the court shall appoint legal counsel to represent the insane spouse at the trial. The plaintiff spouse shall be under obligation to protect and to satisfy the needs of the insane spouse in proportion to his or her condition and fortune, as long as it is necessary for his or her support; Provided, further, That this obligation shall in no case be less than two-fifths (₢) of the gross income which the plaintiff spouse may have from salaries, wages, or any other receipts.
(11) A statement of mutual consent between the spouses for the dissolution of the marriage, filed jointly by ex-parte petition.
(12) A statement of irreconcilable differences which have caused the irretrievable breakdown of the marriage, filed individually.
History —Civil Code, 1930, § 96; May 9, 1933, No. 46, p. 304; Mar. 29, 1937, No. 11, p. 132; May 6, 1938, No. 78, p. 191; Apr. 29, 1942, No. 62, p. 582; Apr. 2, 1971, No. 11, p. 19; May 30, 1976, No. 93, p. 275; June 2, 1976, No. 101, p. 299; July 26, 1979, No. 183, p. 504; Aug. 22, 1990, No. 49, p. 201; Dec. 8, 1990, No. 25, § 2; Aug. 18, 2011, No. 192, § 1.