Elissa Dennis

Executive Director

Elissa Dennis has assisted clients in a broad range of affordable housing developments since joining CEI in 1990. She is expert in financing, tax credit syndication, and related aspects of affordable housing development. She has worked on new construction and rehabilitation projects for families, seniors, and special needs populations in rural, suburban, and urban settings in California and Washington. She is adept at combining various local, state and federal funding sources with the low income and historic tax credit programs.

Elissa is active in local and statewide housing and community development issues. She served on the board of directors of East Bay Housing Organizations including four years as president. She was a founder and longtime board member of People’s Community Partnership (now Self Help) Federal Credit Union. She served several terms on the Housing California board, including time as treasurer. She is currently serving on the boards of California Coalition for Rural Housing and California Tax Reform Association.

Before moving to California for her master’s degree in urban planning at UCLA, she worked as a community organizer in Austin, Texas and a newspaper reporter in Boston, Massachusetts. She has a B.A. from Cornell University.

Diana Downton

Senior Affordable Housing Finance Consultant

Diana joined CEI in 2014, bringing with her 14 years of previous experience in affordable housing development, advocacy, and local government housing finance. Prior to joining CEI, she worked for the City of Oakland’s Housing and Community Development Department serving as the lead staff for the City’s affordable housing development Notice of Funding Availability (NOFA) process, and providing financing for a wide variety of affordable housing rental and ownership projects including new construction and rehabilitation of family, senior, and special needs housing.

Diana has also worked as a Project Manager at the Tenderloin Neighborhood Development Corporation, where she was responsible for the rehabilitations of special needs housing developments. She has been active in local housing advocacy organizations, including East Bay Housing Organizations and as a staff member at the Nonprofit Housing Association of Northern California.

Diana received a master’s in city and regional planning from Rutger’s University, as well as a bachelor’s degree in community studies from UC Santa Cruz.

Allyson Ujimori

Affordable Housing Finance Consultant

Allyson joined CEI in June 2023, with over eight years of experience working in regional and local affordable housing development throughout the California Bay Area. Prior to their time at CEI, Allyson worked for non-profit and public agency affordable housing developers. During her time as a development project manager, they evaluated acquisition and recapitalization opportunities and managed new construction projects. They contributed to the developed communities that serve families, seniors, and households with special needs.

Allyson earned her master’s in Urban & Regional Planning, from UCLA, and a bachelor’s in Community & Regional Development from UC Davis. When not working, Allyson enjoys the outdoors, biking around town, eating tasty foods, and resting.

Lisa Motoyama

Senior Affordable Housing Finance Consultant

Lisa joined Community Economics in 2018, bringing together her experience and expertise from work across the public, nonprofit and for profit affordable housing development sectors, and through the lifecycle of development from feasibility to refinance and recapitalization.

Prior to Community Economics, she served as the Director of Real Estate – Special Initiatives and Director of Acquisition and Preservation at the San Francisco Mayor’s Office of Housing and Community Development where she was primarily responsible for the infrastructure and real estate aspects of the HOPE SF Initiative, the nation’s first large-scale public housing transformation and reparations effort without mass displacement of the existing 4,500 residents living in 2,000 dilapidated units. During her tenure, 643 units were completed or started construction, and entitlements and development agreements approved for 3,300 units.

Prior to her transition to the public sector, Lisa was an affordable housing developer and advocate in the nonprofit sector. In her previous position as Housing Development Director at Resources for Community Development, she was responsible for the development of over 1100 units serving over 3,000 low income adults and children, many with special needs. With over 20 years of housing development experience, Lisa brings her passion and expertise to improving the lives of low income people. In addition to her work experience, she has served in volunteer positions ranging from the Contra Costa County Affordable Housing Finance Committee, and the EBHO Board of Directors, to the El Cerrito Planning Commission and the Oversight Board of the San Francisco Office of Community Investment and Infrastructure.

She has a master’s degree in City and Regional Planning from UC Berkeley and a bachelor’s of arts degree in History and Art History from UCLA.

Linda Rivers

Office Manager

Linda Rivers joined Community Economics in 1989. She brings several years of experience in accounting and bookkeeping. Prior to joining Community Economics, Inc., she was the Assistant Bookkeeper and a Reverse Mortgage Counselor for Eden Council for Hope and Opportunities. She has gained over 23 years of expertise working with nonprofits and as a CTEC Tax Preparer. Linda served on the finance committee and the VITA site for People’s Community Partnership (now Self Help) Federal Credit Union. She has a bachelor’s degree in business administration.

Joel Rubenzahl


Joel Rubenzahl is an expert in the development, financing, and syndication of affordable rental housing.  He has extensive experience providing technical assistance to nonprofit organizations and public agencies, and has been instrumental in the development of local, state, and federal programs that create and maintain affordable rental housing.

Joel has particular expertise in utilizing the federal and state low-income housing tax credit programs. He played an active role in the creation of California’s program. He was the architect of Section 1602 in the American Recovery and Reinvestment Act that led to the sale of over $5.6 billion of Low-Income Housing Tax Credits to Treasury through December 2010.

Joel is a frequent presenter at conferences and workshops nationwide, and has taught courses on the economics of the exit of investors in tax credit developments. He has testified as an expert witness at California and U.S. Congressional hearings on affordable housing programs.

Joel joined CEI in 1976 after completing a master’s degree in city and regional planning at the University of California, Berkeley. After retiring in early 2015, he continues to work with CEI as a consultant.