He was named justice of the peace for Quebec district in 1786. In 1789, Aubert de Gaspé inherited the seigneury of Port-Joly after the death of his mother. He purchased the seigneury of Islet-à-la-Peau (Demi-Lieue) the following year.
He was appointed justice of the peace for Quebec district in 1786. In 1789, Aubert de Gaspé inherited the seigneurial estate of Port-Joly following his mother's passing, and subsequently acquired the seigneurial estate of Islet-à-la-Peau (Demi-Lieue) the following year.