Carl Berquist has been promoted from deputy director to worldwide director of San Francisco-based Arthur Andersen Real Estate and Hospitality Group (REHSG). Berquist replaces Gary Lenz who has since joined San Diego-based Peregrine Systems. Berquist has more than 26 years of experience serving publicly and privately held multi-location real estate and hospitality clients. He has served as the head of Arthur Andersen's Southeast U.S. region real estate practice and has significant experience in financial forecasts, industry accounting problems and joint venture formations.