Use the forms on this page to find a Mason-McDuffie brokerage office or real estate agent. We have offices across Northern California. In the Bay Area, we have real estate offices in San Francisco, Peninsula cities such as San Mateo and Burlingame, and Easy Bay cities such as Berkeley, Oakland and Piedmont. We also cover the Wine Country, with offices in Napa and Sonoma. Beyond the East Bay, we have offices in Pleasanton, Orinda, as well as Sacramento and Truckee. In these cities and more, our offices and agents can help you through the home buying or selling process, from finding home listings, putting your home on the MLS, to negotiating and closing the transaction.