Our Staff

Lesley Mumford

Lesley Mumford

Executive Director
970-455-8425
Director@SummitAdvocates.Org
Lesley was named the Executive Director of Advocates for Victims of Assault in June 2018. She was drawn to advocacy after experiencing the powerful impact of advocacy and how it changed her life. Lesley’s personal experience has given her an unwavering commitment to advocacy. Prior to serving as the Executive Director at AVA, Lesley was a public safety professional for 18 years. Lesley most recently served as the Operations Division Commander at the Summit County Sheriff’s Office, leading a division of 33 law enforcement officers. She worked in the Investigations Section for nearly a decade. In that position, Lesley worked closely with survivors of domestic violence and sexual assault. During her career, Lesley served on several multidisciplinary teams and helped create cooperative agreements improving survivor services.
Claudia King

Claudia King

Development Director
970-368-6838
Development@SummitAdvocates.Org
A Guilford College graduate with a Bachelor’s degree in business management and a minor in Finance, Claudia was named the Development Director of Advocates for Victims of Assault in November 2019. Claudia had a strong desire to work in advocacy after realizing the benefits of advocacy personally and how beneficial the services of Advocates are for community members. Prior to joining Summit Advocates as the Development Director, Claudia worked in law enforcement in North Carolina and in Summit County. Her experience in NC as a field officer included significant work with survivors of sexual assault and domestic violence. Additionally, Claudia has spent over a decade working in Events and Marketing, planning and managing events for brands like General Motors, Ford Motor Company, and Jaguar.
Jessie Sack, Esq.

Jessie Sack, Esq.

Legal Programs Coordinator
970-668-3906
Jessie@SummitAdvocates.Org
Jessie obtained her Bachelor of Arts in English and East Asian Studies from Colby College in 2008, and her Juris Doctorate from New York Law School in 2014. While in law school, Jessie worked as a law clerk at several private firms and non-profits and represented unaccompanied minors at the Catholic Charities immigration clinic. After law school, Jessie served as an AmeriCorps Attorney at Greater Boston Legal Services, where she provided direct legal services to victims of domestic violence in the Asian community, particularly in the areas of immigration law and employment law. She is admitted to the Colorado and Massachusetts bar. A California native, Jessie spent much of her early years in Taiwan and speaks Mandarin fluently. Since moving to Colorado in 2016, she has quickly adopted the mountain state as her home. In particular, she enjoys snowshoeing with her husband and cat, cooking and yoga.
Rossi Wingler

Rossi Wingler

Housing Program Coordinator
970-485-4226
housing@summitadvocates.org
Rossi joined the team as the Outreach and Education Coordinator in August, 2020, and was promoted to Housing Program Coordinator in March, 2021. She moved to Summit County in January, 2019, to be a ski instructor after graduating from Indiana University - Indianapolis and living in Paris, France, for nearly a year and a half. She enjoys meeting new people and building relationships in the community. In her free time, she’s most likely traveling somewhere new, backpacking, skiing at Breckenridge, reading in a hammock, or checking out a new brewery.
Dariela Alvarado

Dariela Alvarado

Bilingual Advocate
970-668-3906
dariela@summitadvocates.org
Dariela joined the team as the Bilingual Advocate in August, 2020. She graduated from Colorado State University in May, 2020, with a Bachelors degree in Human Development and Family studies with a pre-health concentration. Dariela brings with her experience working with at-risk youth in the Fort Collins community and working with youth in Summit County as a mentor with the pre-collegiate program.  Dariela was raised in Summit County. She loves this community and wants to give back to them as much as possible by serving both English-speaking and Spanish-speaking populations. In her free time, Dariela loves going on hikes with her dog and spending time with friends and family.
Hillary Berno

Hillary Berno

Program Assistant
970-668-3906
hillary@summitadvocates.org
Hillary joined the team in January, 2021, as the Program Assistant. Hillary grew up in Vermont and graduated from Saint Michael's College with a degree in Business, Marketing, and Studio Art. She volunteers with the Good Dog Rescue in Denver and is also a ski coach with Team Breckenridge. Hillary has travelled to 42 different countries and cannot wait to visit more! In her free time, you can find her mountain biking, skiing, paddleboarding or doing any activity that brings people together!