Staff & Board


Nicki-smNicki Olivier Hellenkamp, Mobilization and Policy Manager

As Mobilization and Policy Manager, Nicki works with HDC members and partners to advocate together for increased affordable housing to meet the needs of our community. Nicki brings experience in policy analysis, direct advocacy, and organizing to her work, as well as a personal passion for increasing access to quality housing. Before arriving at HDC, Nicki worked as a union representative with United Food and Commercial Workers, Local 21. She received a Master of Social Work degree from the University of Washington and a BA in History from the University of Pennsylvania. She serves on the Seattle Women’s Commission and enjoys baking and jogging. Contact



Joy Scott, SKC Housing Planner
South King Housing & Homelessness Partnership (SKHHP)

Originally from Philadelphia, Joy worked in shelter and crisis settings across the US before coming to Seattle in 2008. She received her MSW focused on Community Centered Integrative Practice from the University of Washington in 2009, and worked with communities in Northeast Seattle for the following four years on issues impacting low income individuals and families. Joy brings a passion for community building and collaborative work to address housing issues, particularly focusing on the intersection of housing and health. As the SKC Housing Planner, Joy works with SKC partners to identify and promote opportunities to implement the South King County Response to Homelessness, increase community resources to affordable housing and homelessness solutions, and support appropriate local solutions to affordable housing and other related needs.  Contact


sara-bakerSara Baker, Policy Associate

As HDC’s Policy Associate, Sara puts a life-long passion for equitable housing and development practices to work. She manages the implementation of HDC’s advocacy communication efforts, helps implement HDC’s annual advocacy and policy priorities, and leads the healthy housing engagement strategies in South King County.
Prior to joining HDC, Sara worked for the City of Kirkland, EEOC, and FHEO. She currently serves on the planning commission for the City of Redmond and holds a Master of Public Administration from the Evans School at University of Washington. In her spare time she enjoys reading, day-tripping, and watching football with her spouse and dogs.


Andrew OrlebekeAndrew Orlebeke, Seattle Outreach Coordinator

As HDC’s new Part-Time Outreach Coordinator, Andrew Orlebeke is excited about helping HDC members and the broader Growing Together Coalition fully understand and engage with the HALA recommendations.

Andrew is from Michigan and received his BA in Spanish from Calvin College. He moved to Seattle in August 2015 to pursue an MPA at the Evans School and spent the year interning at HDC and working at the UW’s Office of Planning and Budgeting. Prior to grad school, he worked as a staffer for Congresswoman Jan Schakowsky in Washington, D.C..  Contact


Loren Tierney, Member Services DirectorLoren Tierney, Member Services Director

As Member Services Director, Loren provides overall direction and support for HDC’s member services program, implementing a comprehensive member and business development agenda, and creating impactful programming for our wide array of membership in partnership with HDC’s Program Advisory Group. Prior to joining HDC staff in late June of 2014, Loren worked as Director of the Municipal League of King County and the Municipal League Foundation, and concurrently worked at the philanthropic, member-based Washington Women’s Foundation. Loren is excited to be working with HDC leaders, members, and friends to create a continuously robust and engaged member program. Please feel free to contact Loren with program ideas, or suggestions regarding membership.  Contact


Daniel Burnett, Member Services Associate

As HDC’s Part-time Member Services Associate, Daniel focuses on supporting the implementation of HDC’s member service agenda, as well as member outreach and communication; providing tools to sector leaders that help further the preservation and expansion of affordable housing. With a background in communication, event planning and clientele services, Daniel will help facilitate the fulfillment of member benefits from events to web services. As a long time immigrant from South Africa, Daniel has formed an appreciation for social services and a deep investment in their continued success. He is excited to be involved in such critical work. Contact


Dan Cantrell, Operations Manager

Dan Cantrell, Operations Manager

As Operations Manager, Dan manages member dues invoicing, oversees technology vendors, works to ensure database integrity and coordination, supports the Executive Director and Finance Committee with financial tracking/reporting and budget development, tracks grant compliance and provides staff support for the HDC Charity Federation and several Affinity Groups. Prior to joining HDC, Dan was the Environmental Compliance Lead at a local computer refurbisher and recycler, and previously was executive director at northwest environmental nonprofits. Dan earned a Master of Public Administration degree from the UW’s Evans School of Public Affairs in 2006. Contact


Marty Kooistra, Executive DirectorMarty Kooistra, Executive Director

A champion of place-based strategies for community revitalization in the US and abroad for 27 years, Marty is recognized for progressive work in the areas of sustainable building practices, homebuyer financial readiness, community development, the rehabilitation and preservation of foreclosed and distressed properties, as well as board development and strategic alliances. A first career as founder and CEO of a successful diversified construction business, and a subsequent degree in social work, allowed him to merge his passion for the built environment with his commitment to social justice, and led him directly to the affordable housing sector.

Before coming to Seattle in 2008 to lead Habitat for Humanity Seattle/South King County, Marty held several leadership positions with Habitat for Humanity’s international headquarters (HFHI). He then served as Board President of HDC before being appointed as Executive Director in 2013. A past Bush Foundation fellow at the Joint Center for Housing and the Kennedy School of Government at Harvard, Marty currently co-chairs the University of Washington’s West Coast Poverty Center Housing Roundtable and serves on the boards of Global Washington, Emerald Cities Seattle, HomeAid Puget Sound, and NACEDA. Previous appointments include All Home’s coordinating board and the City of Seattle’s Housing Affordability and Livability Agenda (HALA) committee. Contact

2017 HDC Board of Directors

Executive Officers:
Brian Lloyd, Beacon Development Group
Andrea Sato, Kantor Taylor

Megan Hyla, King County Housing Authority
Jill Fleming, Capitol Hill Housing


Meghan Altimore, Hopelink
Mark Ellerbrook, King County Housing & Community Development
Amy Besunder, Bellwether Housing

Sibyl Glasby, Imagine Housing
Mark Gropper, Renton Housing Authority
Betsy Hunter, Plymouth Housing Group
Joel Ing, Edge Developers
Douglas Ito, SMR Architects
Grace Kim, Schemata Workshop
Ann-Marie Lindboe, Seattle Housing Authority
Michelle Morlan, Lotus Development Partners LLC
Miriam Roskin, Seattle Office of Housing
Kristin Pula, HomeSight
Rob Van Tassell, Catholic Housing Services
Dianne Wasson, Homestreet Bank
Ben Wolters, City of Kent
Kira Zylstra, All Home
Lisa Hagen, Capitol Hill Housing, 2017 Board Fellow