CPS Property Advocates CPS Property Advocates is a full service real estate brokerage serving the beautiful County of Sonoma. Our staff includes over 30 professional and passionate real estate and lending professionals. At CPS Property Advocates, we take pride in providing sound advice, negotiating contracts successfully and feverishly managing the details. Register now and we’ll begin working for you within the next 24 hours. We Know Sonoma County – With decades Sonoma County experience, we have developed a remarkable knowledge base of local real estate history. Our associates are often privy to information about subdivisions, land and neighborhoods that won’t appear on any report or record.