Questions arise over an amendment to a government contract involving former Justice Secretary Janet Parra as officials call for a review by the Government Ethics Office. By THE STAR STAFF The Popular Democratic Party’s spokesperson in the House of Representatives, Héctor Ferrer Santiago, sent a letter Wednesday to Luis A. Pérez Vargas, executive director of the Puerto Rico Government Ethics Office (GEO), raising concerns over an amendment made to former Justice Secretary Janet Parra’s…