After moving to Paris in 1827 where he moved with his wife and his one-year-old daughter, Amazilli, Lavallée became a shareholder of the Le Globe, a liberal opposition newspaper with Saint-Simonian roots.
In 1827, after relocating to Paris with his family including his wife and one-year-old daughter, Amazilli, Lavallée joined as a shareholder in the Le Globe, a liberal opposition newspaper that traces its roots to Saint-Simonian ideas.