One source refers to him as „abogado”. Having returned to Olot in 1893 Llosas Badía married Anna Serat-Calvó y Plana (died 1942); they settled at calle de San Jerónimo 47. In 1895 he and two relatives founded a local bank, Banco Llosas, Escubós y Puigmitjà, which proved successful and remained their property until the mid-1920s. Pedro and Anna had 6 children, born between 1894 and 1904, but the family life was marked by recurring tragedies: María died in early infancy, Rosa - who married Joaquin Vayreda Aulet, son the Olot Traditionalist painter and author, Marian Vayreda - died at 23 in 1918, Nonito died also at 23 in 1921 and Juan died at 41 in 1933. Of the two surviving, Martirián Llosas y Serrat-Calvó - also a Carlist - was active in the Barcelona juvenile court, during early Francoism serving briefly as president of the Gerona diputacion and rising to president judge of Tribunal Tutelar de Menores de Barcelona and president of Union Nacional de Tribunales Tutelares de Menores, apart from having been president of Obra Tutelar Agraria for 27 years. Miguel Llosas y Serrat-Calvó pursued a law career and was also active as judge for the minors, but became a public figure mostly as a man of letters. Apart from lesser works on history and culture; his major study focusing on ancient Rome, "Berenice", was published posthumously. In the late 19th century Olot was among Catalan Carlist strongholds. Painting activity of Escuela de Olot and literary works of Marian Vayreda y Vila made it cultural centre of regional Traditionalism and conservative Catalanism. The young Pedro – though nothing is known about political preferences of his ancestors – was growing exposed to both and actively engaged in both. In 1891 he was already reported as secretary of the local Centre Catalanista, 1892 growing to its vice-president; during his early years he also entered the local Circulo Tradicionalista, at unspecified date rising to its president. In the mid-1890s Llosas was also busy in local Olotense and regional Catalan Catholic initiatives. Apart from organizational work he was active as a speaker and especially as an author, contributing to periodicals like "L’Olotí" and "El Deber", though also "Diario de Olot" and "El Ateneo"; his writings revealed a knack for culture and history.