In 1831, he married Elise, the daughter of Benjamin Beaupré, a merchant at L'Assomption. Rodier moved to L'Assomption; he was elected to the Legislative Assembly of Lower Canada for that region in an 1832 by-election held after Barthélemy Joliette was appointed to the legislative council. Rodier was reelected in 1834.
In 1831, he wedded Elise, the offspring of Benjamin Beaupré, a merchant at L'Assomption. Rodier relocated to L'Assomption; he was elected to the Legislative Assembly of Lower Canada for that area in an 1832 by-election held after Barthélemy Joliette's appointment to the legislative council. Rodier was reelected in 1834.