Together we can do so much.

  • Randy Tsuda, AICP
    Randy Tsuda, AICP
    President and CEO

    Randy joined Alta Housing in 2018 after serving as the Mountain View Community Development Director for over 10 years. His career includes experience in the non-profit, private, and public sectors, and spans real estate, city planning, affordable housing, and economic development. He has worked on projects that received awards from the American Planning Association, American Society of Landscape Architects, and in May 2018 received the “Bringing It Home” award from SV@Home, a policy and advocacy organization focused on increasing affordable housing. Randy was also a lecturer for seven years in the Urban and Regional Planning Program at San Jose State University.

    BS, City and Regional Planning, California Polytechnic State University, San Luis Obispo

  • Georgina Mascarenhas
    Georgina Mascarenhas
    VP, Property Management

    Georgina manages over 700 units—and growing! She joined Alta Housing in 2006 as Director of Property Management, and has since been named VP, Property Management. She brings over 20 years of progressive experience in multi-family property management with expertise in landlord/tenant law, fair housing, and issues related to affordable and subsidized housing.

    BA, Psychology, Saint Lawrence’s College, Karachi

  • Quinsia Ma
    Quinsia Ma
    Chief Financial Officer

    An accountant with over 20 years of progressive experience, Quinsia Ma joined Alta Housing in 1999. She is committed to ensuring the financial integrity of the company and its affiliates, and serving the fiscal needs of The Housing Development, and Property Management Divisions. She monitors financial policies and procedures, internal controls and reporting systems, and supervises accounting, payroll, and human resources.

    BS, Business Administration, California State University, San Jose.

  • Kate Young
    Kate Young
    VP, Resident Services

    Named a “Local Hero” by the MidPeninsula Media Center in 2011, Kate Young is committed to an empowering living environment for Alta Housing residents. She oversees The Resident Services Division, bringing onsite services in education, health, and social services to Alta Housing residents. She has been at Alta Housing for nearly 15 years.

    BA, Asian Studies, University of Puget Sound
    MA Candidate, Intercultural Relations, School for International Training
    ESL Certificate, Seattle University
    Founding Board Member, DreamCatchers
    Certified Youth Program Quality External Assessor

  • Keri Lung
    Keri Lung
    VP, Housing Finance and Portfolio Management


    Keri has over 25 years of experience in affordable housing, economic development, urban and environmental planning. She joined Alta Housing in 2016 after 11 years at MidPen Housing Corporation where she contributed significantly to that organization’s growth, including developing more than 900 units of affordable housing in Santa Clara, San Mateo and Alameda counties. As a consultant before that, Keri helped develop the award-winning “Opportunity Center” for the homeless in Palo Alto. She began her career as an environmental planner in San Mateo County, managed economic development projects in New York City, and headed the Port of San Francisco’s first Planning and Development Division. Keri now provides strategic direction on the financing of affordable housing developments and optimal positioning of Alta Housing’s portfolio.

    BS, Applied Earth Sciences, with honors, Stanford University
    Masters in City Planning, Massachusetts Institute of Technology

  • Rubi Valencia
    Rubi Valencia
    BMR Administrator

    A Bay Area native Rubi Valencia is an active member of the Silicon Valley progressive community. With experience in affordable housing and the Below Market Rate program, she manages the City of Palo Alto Below-Market-Rate (BMR) rental and ownership programs, Mountain View Employee Homebuyer Loan Program and most recently, the City of Mountain View’s BMR rental program.


  • Sheryl Klein
    Sheryl Klein
    Chief Operating Officer