Llorens Torres returned to Puerto Rico in 1901, married, and moved to
Ponce where he established his own law firm (
Nemesio Canales later joined his firm) and collaborated with the newspaper
Lienzos del Solar. During this time he wrote some of his best works. He also met numerous poets like Julia de Burgos. When Llorens Torres returned to Puerto Rico he found a political situation completely different than from the one that he had left. Puerto Rico had been invaded by the
United States during the
Puerto Rico Campaign of the
Spanish–American War in 1898. This motivated Llorens Torres to join the political
Union Party of Puerto Rico. The ideal of independence for the island. He transmitted his beliefs to the public through his poem "El Patito Feo" (The Ugly Duckling). He became a member of the Puerto Rican legislature and was named to the Camara of Delegates from 1908 to 1910 representing the municipality of Ponce. On February 8, 1912, together with
Rosendo Matienzo Cintrón and
Manuel Zeno Gandía, he wrote a manifesto which stated that it was time for Puerto Rico to have its independence. That year Llorens Torres, Rosendo Matienzo Cintrón, Manuel Zeno Gandía,
Eugenio Benítez Castaño, and
Pedro Franceschi founded the Independence party which was the first party in the history of the island to exclusively want
Puerto Rican independence. Eugenio Benítez Castaño was named president of the short lived political party. In 1913, Llorens Torres co-founded with Nemesio Canales
La Revista de Las Antillas..., a literary publication. ==
Grito de Lares==