AZ BEX: Capstone Advisors Has Acquired 420 S. Mill Ave and 501 S. Mill Ave. in Tempe for $22.2M January 23, 2024 by Webmaster Phoenix, AZ – January 16th, 2024 – Capstone Advisors has acquired 420 S. Mill Ave and 501 S. Mill Ave. in Tempe for $22.2M. Century Drive Investments LLC was the seller. Read the Full Release.