P.R. Laws tit. 8, § 542c
(a) A tribunal of Puerto Rico may exercise jurisdiction to establish a support order if the petition or comparable pleading is filed after a pleading is filed in another state only if:
(1) The petition or comparable pleading in Puerto Rico is filed before the expiration of the time allowed in the other state for filing a responsive pleading challenging the exercise of jurisdiction by the other state;
(2) the contesting party timely challenges the exercise of jurisdiction in the other state, and
(3) if relevant, Puerto Rico is the home state of the child.
(b) A tribunal of Puerto Rico may not exercise jurisdiction to establish a support order if the petition or comparable pleading is filed before a petition or comparable pleading is filed in another state if:
(1) The petition or comparable pleading in the other state is filed before the expiration of the time allowed in Puerto Rico for filing a responsive pleading challenging the exercise of jurisdiction by Puerto Rico;
(2) the contesting party timely challenges the exercise of jurisdiction in Puerto Rico, and
(3) if relevant, the other state is the home state of the child.
History —Dec. 20, 1997, No. 180, art. 2.204.