As General Counsel, Ms. Zimmerman is responsible for coordinating and managing all legal work for McCormack Baron, including project development, coordination of outside counsel, and corporate and management legal matters. Ms. Zimmerman is also President of the Asset Management Division, responsible for McCormack Baron’s owned portfolio of more than 100 properties as well as additional portfolio management of more than 200 properties. She is experienced in real estate, contract negotiation and development procedures at the municipal, state and federal level, with a specialty in HOPE VI/Mixed Finance projects, FHA and other HUD programs.

Prior to joining McCormack Baron in 1984, Ms. Zimmerman was a partner in the law firm of Greenfield, Davidson, Mandelstamm & Voorhees in St. Louis. As a deputy member of the National Task Force on Financing Affordable Housing, she co-authored a chapter on subordinate debt and subsidy financing and was an organizer of the Task Force-sponsored Multifamily Institute. In 2011, she was appointed Vice Chair of the Urban Land Institute's Affordable/Workforce Housing Council.

Ms. Zimmerman serves as a commissioner of the Missouri Botanical Garden Subdistrict Commission. She serves on the Board of Directors of The Girl Scouts of Eastern Missouri, on the Board of the Indiana University–Bloomington Parents Association, and is a member of the St. Louis Forum, an organization of top-ranking female executives. She previously served as Vice President of the Jewish Center for Aged and as President of The Alexandra Ballet. Ms. Zimmerman is a frequent speaker for The Institute for Professional and Executive Development, Inc. (IPED), the Urban Land Institute, St. Louis University Law School, National Network of Commercial Real Estate Women, U.S. Department of Housing and Urban Development, and the National Housing and Rehabilitation Association.