Complex sentence: In the early years of growth, successful Coldwell Banker offices were devoted primarily to commercial real estate brokerage firms and in 1925 the first residential real estate office opened in San Francisco and a full fledged residential real estate department was formed by 1937.
Split into simpler sentences: In the early years of growth, Coldwell Banker offices were devoted primarily to commercial real estate brokerage firms. In 1925 the first residential real estate office opened in San Francisco and a full fledged residential real estate department was formed by 1937.