In 1734 at 28 years of age, Sadamichi was appointed as Master of Ceremonies ('Soshaban') and the following year (1735) was appointed as Commissioner of Temples and Shrines ('Jisha Bugyo').
享保19年（1734年）28歳で奏者番、翌享保20年（1735年）には寺社奉行を歴任。