In 1835 he was elected Brazoria alcalde and was one of the four representatives of Brazoria who attended the convention at Washington-on-the-Brazos in 1836, where he signed the Texas Declaration of Independence.
In 1835, he was chosen as the mayor of Brazoria and among the four delegates representing Brazoria, he participated in the convention held in Washington-on-the-Brazos in 1836, where he signed the document declaring Texas independence.