MLH staff’s broad and diverse skill sets allow the organization to advocate for affordable housing in the Eastern Sierra region. As a community leader, MLH has worked on local policy development, Housing Element updates, development agreements, and much more in our mission to support affordable housing initiatives. Affordable housing benefits the local workforce, small businesses, prospective employers, and our community and we are dedicated to spreading this positive message. We thank our Board of Directors, past staff members, and community for their guiding inspiration.

tiny housePatricia Robertson
Executive Director

Patricia has worked for Mammoth Lakes Housing since 2013. During her tenure she has overseen more than $18 million in housing programs for the region, including grant applications, property acquisitions and rehabilitation, NEPA/CEQA, subrecipient and partner agreements, periodic reporting, budget performance, and loan underwriting for State and Federal grants such as HOME, CDBG, CalHOME, and Project Homekey. She has developed efficiencies in annual asset monitoring and income qualification processes. Her work has directly impacted the lives of hundreds of local households with affordable housing solutions. Patricia is committed to outreach and public education efforts, teaching multiple free Home Buyer Education Classes, bringing legal aid experts to speak on landlord-tenant’s rights, and diligently providing information in both English and Spanish.

Patricia is passionate about community and economic development. Before joining Mammoth Lakes Housing, she worked for the Town of Mammoth Lakes where she was part of the inter-departmental team that created and implemented the successful Transient Occupancy Tax Enforcement & Revenue Collection Program, to enforce nightly rental restrictions per the zoning and tax codes.

She holds a Master of Arts in both Community & Regional Planning and Latin American Studies from the University of New Mexico and a Bachelor of Arts in Social Thought & Political Economy from the University of Massachusetts, Amherst. Her interests range from sustainable tourism planning and land use law to participatory economic development strategies. She is an active volunteer and member of the Mammoth Lakes Women’s Club which raises funds for many community programs. Patricia, her husband, and their two sons enjoy hiking and camping, swimming, and snowboarding.

tiny house

Erik Guzman-Rangel
Program and Project Associate

Erik Guzman-Rangel joins our team after successfully completing a year-long internship through a partnership with the California Coalition for Rural Housing. Erik is a first-generation college student currently attending Humboldt State University, studying Environmental Science and Management with a focus on Policy and Planning as well as a minor in Natural Resource Recreation, where he is pursuing a career in either city or regional planning. He will be taking classes at Humboldt State University this whole year and will be graduating in May 2022. Erik’s interest in natural resource recreation, policy and planning, and affordable housing development have drawn him to the public sector where he plans on disseminating the knowledge and social capital he gains into the community, helping people break out of the cycle of poverty. Erik will be working with Mammoth Lakes Housing, gaining experience in areas such as participating and facilitating community meetings, assisting with land and property acquisition, conducting need and assessment surveys, participating in affordable housing development meetings with architects and property managers, participating in construction meetings and preparing construction draw requests, and assisting with financial applications and loan closings. In addition, as part of the internship program, Erik will be attending an intensive summer training institute hosted by the University of California, Davis as well as, enrichment opportunities such as the CCRH Rural Summit and Statewide Housing Conference. We are excited to welcome Erik into the Mammoth Lakes Housing team.


tiny houseDiane Doonan
Grant & Financial Associate

Diane’s career has been directed at improving our communities and insuring that they are good, safe and healthy places for all to live. She has worked in promoting health and well-being, education and children, the protection of our natural resources, and local food access and availability. She also owned and operated a used book store for many years, providing a safe place for community members to gather, access affordable information and educational resources, and encouraging children to read and grow.

Diane has experience in grant writing for rural community housing and infrastructure projects as well as project management, and thirteen years in planning and community development with the Washoe Tribe of Nevada and California. She has managed work crews and construction contracts, developed planning systems, and organized basket festivals and summer lunch programs, which gave her the opportunity to learn about the residents with truly deep roots in the region. Those projects balanced the need for economic development and modern amenities with the preservation of land values, sacred values, and the culture of the tribe.

Diane brings extensive experience collaborating with nonprofit, federal, state, and local government entities, including the CA Department of Housing & Community Development, USFS, BLM, Bureau of Indian Affairs, Tahoe Regional Planning Agency, Natural Resource Conservation Service, Alpine County, Washoe County, Carson City, and Douglas County. Diane has a Bachelor of Science from the University of California, Davis in Applied Behavioral Science with a specialization in Rural Community Development.

Her varied background and entrepreneurial spirit give her great insight into the dynamic world of rural community development and grant management and are an asset to Mammoth Lakes Housing and the communities we serve.


Previous CCRH Interns:

Erik Guzman-Rangel
2021-2022 Rural West Intern

Eduardo Bribiesca
2020-2021 Rural West Intern

Eduardo is a first-generation college student attending Cerro Coso studying construction management. He is majoring in mathematics and is currently taking math courses this summer. He is looking forward to becoming part of affordable housing developments as a way to invest in myself and combine affordable housing knowledge with the physical aspect of a development. He hopes to play a prominent role in rural affordable housing developments across the state.

Jake Castro
2019-2020 Rural West Intern

Jake Castro is our Rural West Intern for the 2019-2020 program year, through a partnership with the California Coalition for Rural Housing. He is a first-generation college student currently studying Liberal Arts: Math & Science at Cerro Coso Community College, pursuing a career in civil engineering. Civil engineering and affordable housing are particularly interesting to him because he is drawn to service and assisting others to achieve economic opportunity. He is taking classes over the summer and hopes to graduate from Cerro Coso Community College in December of 2020. He will be working at Mammoth Lakes Housing part-time throughout the program year, learning valuable skills in community lending, asset management, and affordable housing development. In addition, as part of the program he will attend an intensive training at UC Davis as well as professional conferences. We are excited to welcome Jake to our team!