Intero Real Estate-Mary Harris Share: Real Estate, Residential Intero Real Estate-Mary Harris Visit Website 1250 San Carlos Ave., Ste. 102 San Carlos, CA 94070 (650) 222-8857 (650) 412-2517 (fax) About Map About Providing professional real estate services for first-time buyers to the most experienced investor. It pays to have knowledge and experience on your side. What's Nearby? Distance: 5 10 15 20 25 50 mi.