Team Anderson
Maggie Sleeper
Deputy Chief of Staff
(858) 264-9547
Maggie.Sleeper@sdcounty.ca.gov
Maggie Sleeper brings almost two decades of political, policy and industry experience to the job of Deputy Chief of Staff for Supervisor Joel Anderson. Previously, Maggie served as a Municipal Infrastructure Advisor for San Diego Gas & Electric, where she partnered with local governments to coordinate major infrastructure projects. She was the recipient of an SDG&E Spotlight Award for her work facilitating a series of Wildfire Safety Workshops with local governments and community leaders. Prior to her role at SDG&E, Maggie served as Director of Policy to San Diego City Councilmember Scott Sherman, where she worked on reforms to encourage housing production and improve outcomes for the City’s homelessness response system. For 10 years, Maggie served as a staff member, Legislative Director, and Deputy Chief of Staff for California Assemblymember, then State Senator Joel Anderson, and Assemblymember Linda Halderman. During this time, she shepherded successful legislation to crack down on human trafficking in massage establishments, to provide funding to school districts for reducing school bus emissions, to prevent incarcerated physicians from writing prescriptions, and to provide transitional services to exonerated inmates. She also managed the legislative efforts to rename a portion of I-15 near MCAS Miramar the “Tuskegee Airmen Highway,” as well as historic designations for Highway 94 and Highway 67 in the San Diego backcountry. Maggie graduated from University of California, San Diego with a BA in Political Science and is a member of the Phi Beta Kappa honor society. She is an Alumna of the San Diego County Water Authority “Citizens Water Academy,” LeSar Development Consultants Housing Policy Leadership Academy, and holds a certificate in Advanced Public Engagement for Local Government from the Pepperdine School of Public Policy. She, her husband, and six-year-old son reside in the Spring Valley community of San Diego County.
Team Anderson exists to make County government work for the constituents of District 2. Learn more about the roles and responsibilities of Team Anderson below. If you are unsure of who to contact with your question or concern, please consider using the Contact Us form.
Administrative Team
Maggie Sleeper
Chief of Staff
(619) 764-1883
Maggie.Sleeper@sdcounty.ca.gov
Maggie Sleeper brings almost two decades of political, policy and industry experience to the job of Chief of Staff for Supervisor Joel Anderson. Previously, Maggie served as a Municipal Infrastructure Advisor for San Diego Gas & Electric, where she partnered with local governments to coordinate major infrastructure projects. She was the recipient of an SDG&E Spotlight Award for her work facilitating a series of Wildfire Safety Workshops with local governments and community leaders. Prior to her role at SDG&E, Maggie served as Director of Policy to San Diego City Councilmember Scott Sherman, where she worked on reforms to encourage housing production and improve outcomes for the City’s homelessness response system. For 10 years, Maggie served as a staff member, Legislative Director, and Deputy Chief of Staff for California Assemblymember, then State Senator Joel Anderson, and Assemblymember Linda Halderman. During this time, she shepherded successful legislation to crack down on human trafficking in massage establishments, to provide funding to school districts for reducing school bus emissions, to prevent incarcerated physicians from writing prescriptions, and to provide transitional services to exonerated inmates. She also managed the legislative efforts to rename a portion of I-15 near MCAS Miramar the “Tuskegee Airmen Highway,” as well as historic designations for Highway 94 and Highway 67 in the San Diego backcountry. Maggie graduated from University of California, San Diego with a BA in Political Science and is a member of the Phi Beta Kappa honor society. She is an Alumna of the San Diego County Water Authority “Citizens Water Academy,” LeSar Development Consultants Housing Policy Leadership Academy, and holds a certificate in Advanced Public Engagement for Local Government from the Pepperdine School of Public Policy.
Heather Koszka
Director of Operations
(619) 531-5932 (desk)
Heather.Koszka@sdcounty.ca.gov
Heather Koszka is an experienced and enthusiastic public servant with a passion for making public policy accessible to the people. A Northern California native, Heather found her aptitude for public service while working in the California State Legislature in Sacramento. For over a decade, Heather connected San Diego constituents with their state government while working for multiple state legislators, including Senator Joel Anderson. Heather quickly became known for her exceptional scheduling and professional skills throughout the Capitol, where she was asked to host bipartisan trainings for several legislative offices. Heather’s work has received state and national attention, including recognition from the Robert M. Hertzberg Capitol Institute and the National Conference of State Legislatures (NCSL). Some of her greatest accomplishments include organizing highly attended community events and growing Senator Anderson’s Capitol Internship program to over 180 interns, later earning her a position as Capitol Office Director for Senator Brian Jones.
Heather rejoined Team Anderson in 2021 and is eager to serve San Diego County constituents, now at a local government level. She is thrilled to finally be living in the San Diego area and plans to explore all the beautiful things our area has to offer.
Miyu Oda-DesHotels
Constituent Services Manager &
Policy Aide
(619) 705-9601
Miyu Oda DesHotels is a driven individual who graduated from San Diego State University with a Bachelor of Arts in Psychology. Throughout her academic journey, she displayed a strong passion for community engagement and leadership. As the President of the Black Student Science Organization, Miyu spearheaded initiatives to promote diversity in the field of science and fostered a supportive environment for students. Additionally, as an active member of the Community Service Co-ed Fraternity, Alpha Phi Omega, she dedicated over 200 hours to various community service projects, making a positive impact on the lives of others. She is eager to provide assistance and ensure that the needs of the community are met effectively and efficiently.
If you have any inquiries or issues related to the County Departments, feel free to reach out to Miyu Oda DesHotels.
Communications Team
Matthew G. Phy, MSL
Director of Communications
(619) 957-8834
Matthew is a southern California native bringing over a decade of political, communications, and policy experience to District 2. Graduating Summa Cum Laude from Arizona State University, he earned a Bachelor of Science Degree in Political Science with Minors in Communication and Media Analysis. In summer of 2023, Matthew was admitted and awarded a scholarship to the University of Southern California’s Gould School of Law, a Top 20 Law School in the country. In December 2024, he completed a two-year program in just 16 months while working full-time, graduating with his Master of Studies in Law (MSL) with an emphasis and certificate in Business Law. Matthew was recognized in 2023 as a “Top 40 under 40” honoree by San Diego Metro Magazine. Matthew’s significant policy and communications experience includes several statewide and local campaigns, where he served as a top advisor. Prior to joining Supervisor Anderson’s office, Matthew was Deputy District Director and Senior Policy Advisor to former California State Senate Minority Leader and State Senator Patricia C. Bates. Matthew is a foodie and loves exploring new, local restaurants with friends. He’s also a proud uncle with three nieces and two nephews: Braelyn, David, Kinsley, Grace, and Caleb.
Matthew is the Supervisor's chief spokesperson overseeing all communications, media inquiries, and is his lead public safety policy advisor.
Ian Harper
Communications Manager
(858) 264-9257
Ian is a recent graduate from San Diego State University (SDSU) where he obtained a bachelor’s degree in Economics. A Long Beach, California native, Ian joined Team Anderson full-time in May 2024, after nearly two years as a Student Worker under Supervisor Anderson. As a student worker, Ian continued to break his own glass ceilings, which greatly contributed to him earning a full-time position.
Ian is a lifetime member of the Delta Chi International Fraternity, and previously served on the SDSU Chapter’s Executive Board as the Risk Management Officer. Outside of the office, Ian is a big sports fan who loves watching Los Angeles teams. Ian is also an avid enjoyer of nature, of which San Diego County has plenty to offer.
Ian handles social media, letters of support, and internal communications.
Policy Team
Dallin Young
Director of Policy
(858) 298-5155
Bio coming soon.
Dallin handles the policy areas of economic development, HHSA, infrastructure, airports, broadband, LAFCO, and SANDAG.
Community Outreach Team
Roarke Shanley
District Director
(858) 276-8919
Roarke.Shanley@sdcounty.ca.gov
Roarke is a life-long San Diegan and first generation American. Having served in multiple roles as a Civil Servant, he brings a wealth of experience from both state and local government to his role as District Director for Supervisor Joel Anderson. Roarke graduated from the University of California San Diego with a bachelor’s degree in political science with an emphasis on American Politics, as well as a Minor in Marketing from the Rady School of Management. Prior to joining Team Anderson, Roarke served as Senior Field Representative to Assembly Minority Leader Marie Waldron. In his spare time, he enjoys spending time with his family, running on the many beautiful trails San Diego County has to offer and tending to his avocado trees.
For questions about grants or appointments to county boards and commissions, contact Roarke.
Mariko Nakawatase
Assistant District Director
(858) 285-0162
Mariko.Nakawatase@sdcounty.ca.gov
Mariko is a native San Diegan with a keen interest in helping her community foster growth, connection and acceptance. A graduate of Arizona State University with a double major in Philosophy and Political Science, Mariko also received her Masters in Public Administration from ASU. She is ready to help create a better community for everyone. Before joining Team Anderson, Mariko assisted him with his campaign and also worked on the Escondido City Council campaign for Joe Garcia. Her decade long record of community service in the county includes the cities of La Mesa, Bonita, San Diego and Imperial Beach. She has a background of service, fundraising, and leadership and passion for her county. She is thrilled to be back on Team Anderson and ready to serve the constituents of District 2.
Michelle Surakhanova
Internship Director & Policy Aide
(619) 219-2470
Michelle.Surakhanova@sdcounty.ca.gov
Michelle earned her Bachelor's degree in Economics from California State University, Northridge, wherein recognition of her academic achievements, she received a Certificate of Distinction award. She recently earned her master's degree in management information systems with a focus in business analytics from San Diego State University. Michelle is a member of the National Society of Leadership and Success, the nation's largest leadership honors society. Before joining Team Anderson, Michelle worked in management and later as a legal assistant for a highly prestigious family law firm in Los Angeles. As a Internship Program Director, Michelle manages the internship department and is responsible for documenting all constituent correspondence and casework. Her top priority is to provide exceptional service and support to San Diego County constituents and assist Team Andersons' mission to provide economic prosperity throughout our district. Michelle plays the piano, she enjoys hiking, figure skating, reading, analytics and watching documentaries.
Rania Shaker
Internship Coordinator
(858) 325-9399
Rania is a dedicated and driven professional currently pursuing a degree in Business Administration with aspirations to pursue a career in Human Rights Law. Rania is committed to making a meaningful impact in the legal and human rights fields. She earned her Data Analytics Certificate from the University of California, Berkeley, shortly after high school, showcasing her strong analytical skills and technical expertise. Before joining Team Anderson, Rania spent two years studying abroad in Istanbul, Turkey, which enriched her global perspective. She later returned to the United States to complete her high school education and further her studies in data analytics.
As the Internship Coordinator for Supervisor Joel Anderson’s office, Rania supports the Internship Program Director in ensuring the smooth operation and success of the internship program. Her passion for public service fuels her commitment to contributing positively to her community.
Jillian Osborne
Community Outreach Manager & Grants Administrator
(619) 508-2397
Jillian.Osborne@sdcounty.ca.gov
Jillian Osborne is a San Diego native with a passion for connecting with diverse communities across San Diego County. She graduated Magna Cum Laude from University of California, San Diego, obtaining bachelor's degree in Sociology with a minor in Literature and Writing. As Community Outreach Manager, Jillian has the privilege of recognizing exceptional community members through Supervisor Anderson's Proclamation program. In her role as Grant Administrator, she is dedicated to assisting constituents in navigating the grant application process. Jillian prioritizes transparency, ensuring that the grant process is clear and accessible to all applicants.
A proud San Diegan, Jillian loves the region she grew up in and is thrilled to serve the community that shaped her. Outside of work, she enjoys exploring the Poway Farmer's Market, practicing yoga, and discovering new restaurants with friends.
For questions about the Community Enhancement, Neighborhood Reinvestment, and Small Business Stimulus Grant programs, please contact Jillian at Jillian.Osborne@sdcounty.ca.gov.
Christopher Partridge
Community Outreach Coordinator
Christopher.Partridge@sdcounty.ca.gov
Chris is a San Diego native with a diverse background in both the private and public sectors. He completed an Office Professional Training certificate program at Grossmont College, which laid the foundation for his versatile career. Chris spent ten years as a general manager at a restaurant, while simultaneously gaining experience in various fintech startups. His roles included working at an advertising SaaS firm, managing IT operations in a data center, and overseeing technical support at a call center. Additionally, he worked in the gaming and hospitality industry in a role as a banking, insurance, and tax advisor, handling complex customer service tasks, managing the flow of assets, and navigating intricate tax paperwork. Driven by a desire to make a positive impact, Chris transitioned into the public sector to help improve local government operations. With a strong curiosity about how local government functions and how to increase its efficiency, he is passionate about finding innovative ways to serve the community and maximize the impact of available resources. Chris lives by the motto, "Be the change you want to see in the world," and is always focused on making a tangible difference. Before joining full-time, he also contributed to various campaigning efforts to support his local community.
In his personal time, Chris enjoys spending time with friends and family, traveling, and exploring the many beautiful corners of San Diego. He also loves going to concerts and balancing hard work with a well-rounded, enjoyable lifestyle.
For any Certificate of Recognition requests, please use the certificate request form or contact at Christopher.Partridge@sdcounty.ca.gov.
