Potts served as clerk of the Frederick County court from 1777 to 1778, and as prosecuting attorney for Frederick,
Montgomery, and
Washington Counties in 1784. He was appointed by President
George Washington as United States attorney for Maryland, and served from 1789 to 1791. He was a delegate to the
Maryland State Convention of 1788, to vote whether Maryland should ratify the proposed
Constitution of the United States. Potts also served as a member of the
Continental Congress in 1781, and as member of the Maryland convention which ratified the Constitution of the United States in 1788. From 1791 to 1793 and again from 1796 to 1801, Potts served as chief judge of the fifth judicial circuit of the State. He was later appointed associate justice of the
Maryland Court of Appeals, a position he served in from 1801 to 1804. ==Political career==