"We make a living by what we get, but we make a life by what we give."
-Winston Churchill
Meet the Leadership of the Greater Green Valley Community Foundation
Strong communities are built by people who care deeply about where they live and are willing to invest their time, experience, and leadership in helping others thrive.
The Greater Green Valley Community Foundation is guided by a dedicated Board of Directors and leadership team with deep roots throughout Southern Arizona. Together, they bring experience in business, banking, education, nonprofit leadership, community service, healthcare, and philanthropy to the Foundation's work.
Our leadership helps connect donors, nonprofit organizations, businesses, and community partners while stewarding resources that support meaningful work throughout Green Valley, Sahuarita, Amado, Arivaca, Tubac, Tumacacori, Rio Rico, Nogales, and surrounding communities.
Board of Directors
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Patrick Sedillo
PRESIDENT
Patrick and his wife, Cindy, moved to Green Valley in 2004. Patrick retired from IBM after a 32-year career. He was the Managing Broker and co-owner of HomeSmart Pros Real Estate in Green Valley. Patrick's extensive experience and community mindedness makes him the perfect person to help steer the board and ship of the Community Foundation. He and Cindy travel the country in their RV.
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Patrick with Michelle at ribbon cutting for new GVR Pickleball complex in Green Valley, Jan. 2020.
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Jaime Vasquez
VICE PRESIDENT
Jaime was born and raised in Nogales, AZ and graduated Nogales High School. He has been in banking since 2001 and has worked for several institutions including: Commercial Federal Bank, Bank of the West, Commerce Bank of Arizona, and others. Throughout his career, Jaime has had a variety of responsibilities and gained experience in all aspects of retail banking. He is currently the Branch Manager at BMO Harris Bank in Green Valley, AZ. Jaime is a big advocate in serving his community. He always tries to be involved with community projects and is passionate about GGVCF’s mission.
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Jaime & Patrick at 3rd Annual Sip, Swirl, Shop & Support 2025
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Kathy Wagner
TREASURER
Kathy has lived in Sahuarita for 40+ years and is retired from the popular Arizona Family Restaurant in Green Valley. Kathy has a passion for our community which she is able to now devote her time to the Community Foundation's board of directors. Her extensive business savvy and community support is of great importance to the Foundation. She is one of the most humble and sincere persons you’ll ever meet, and a real pleasure to serve with her.
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Kathy pictured with Steve at 3rd Annual Sip, Swirl, Shop & Support Nov 2025
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Tami Foreman
SECRETARY
Tami moved to Green Valley 16 years ago and is loving retirement. She has 2 sons and 5 beautiful grandchildren She enjoys gardening, refinishing old furniture and spending as much time as possible with her kids and grandkids. She loves Green Valley and is excited to become more active in our community as well as learning more about our surrounding small communities through the work of GGVCF.
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Tami is pictured (right) with Kathy, Julie’s husband Jeff, Eva, Shawn, Julie and Michelle at the 3rd Annual Sip, Swirl, Shop & Support Nov 2025
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Steve Oesterle
MEMBER AT LARGE
Steve came to Green Valley from Maryland 23 years ago so his young children could be close to their grandparents. He has a teenage son (Jackson) and a pre-teen daughter (Zoe). Steve is very active in the community; he is the current Board President for Continental School District. He also helps out the Salvation Army and Community Food Bank. Steve runs a local branch office for a residential mortgage company -Guaranteed Rate. His wife of 24 years (Trina) is a top real estate agent at Coldwell Banker.
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Steve with Natalie De La Riva, from Vantage West
3rd Annual Sip, Swirl, Shop & Support Nov. 2025
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David Polsky
MEMBER AT LARGE
Originally from Greenwich, CT, Dave Polsky moved to Green Valley and opened his business, Dave Polsky's Tire and Auto Center in 1999. Dave has been married for 29 years, with 3 children. His oldest is in medical school and his twins are attending Pima Community College. Also active in Rotary, Dave serves on the Foundation Board to help support the community that has supported him.
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Picture coming soon
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Kris Trosper
MEMBER AT LARGE
I grew up in Sahuarita, a small town where the desert landscape feels like a second home. From the early days at Sahuarita High School to walking across the stage at the University of Arizona, my roots have always been deep in southern Arizona. These places have shaped me in ways I never realized at the time. There's something about the warmth of this desert—both the sun and the people—that sticks with you.
But what truly fills my heart is my daughter, Raegan. Watching her grow and seeing the world through her eyes reminds me of how much I want to give back to the community that gave me so much. I've always believed in the power of connection, so over the years, I've had the privilege of serving on several nonprofit boards. These organizations have become part of my mission to support and uplift the people around me, just as I was supported growing up.
Southern Arizona isn't just where I live; it's who I am. Whether it's helping a local cause or simply lending a hand, I find joy in contributing to this community. It's where my story began, and it's where I plan to keep giving back for years to come.
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Kris is pictured with daughter Raegan
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Dr. Eva Maldonado
MEMBER AT LARGE
Eva Maldonado, Psy.D. is a clinical and forensic psychologist. In her private practice in Tucson, she conducts psychological evaluations for individuals involved in criminal, civil and administrative legal proceedings and provides expert consultation to attorneys, local and federal courts. Dr. Maldonado is a Mental Health Expert for the Arizona Superior Court. She is a certified forensic evaluator. Eva lives in Green Valley.
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Eva’s pictured far right with Lynda Campbell, & Steve at 3rd Annual Sip, Swirl, Shop & Support Nov 2025
Our Team
Michelle Phillips has served as Executive Director of the Greater Green Valley Community Foundation since March 2007 and brings more than 29 years of nonprofit leadership experience to the organization.
Throughout her career, Michelle has worked in nonprofit leadership, education, community development, and international service. She holds a Master of Education in Educational Leadership and a Bachelor of Science in Hotel and Restaurant Management from Northern Arizona University, as well as a lifetime teaching certificate from Pima Community College.
Her work has included international education and service initiatives as well as programs supporting law enforcement, EMT, fire science, corrections, nonprofits, and community organizations.
Today, Michelle leads the Foundation's work connecting donors, nonprofit organizations, businesses, and community partners throughout Southern Arizona. She is especially passionate about strengthening the diverse communities along the I-19 corridor and helping local organizations access the relationships, resources, education, and financial support they need to make a meaningful difference.
When she is not leading the Foundation, Michelle enjoys time at the beach, where she finds inspiration, reflection, and renewal that she brings back into her work and service to the community.
Michelle believes deeply in service, kindness, respect, and the power of people working together to strengthen their communities.
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Relaxing in Costa Del Sol, Spain Oct 2023 with Julie
Michelle Phillips
Executive Director
Julie Demchuk
Office Manager
Julie hails from London, England, where she grew up and served in the prestigious banking industry. She and her husband Jeff have lived in Green Valley for over 30 years. She is semi-retired as a BMO Harris Bank Manager in Green Valley. Julie has served in several capacities as officer and director for the Community Foundation. Her passion is serving her community, especially animals and seniors.
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Julie picking up trash on the Santa Cruz River at a Foundation-sponsored event- Santa Cruz County Shining AZ, March 2024
About The Greater Green Valley Community Foundation Leadership
Who leads the Greater Green Valley Community Foundation?
The Greater Green Valley Community Foundation is led by Executive Director Michelle Phillips and governed by a volunteer Board of Directors representing business, nonprofit, financial, educational, healthcare, and community leadership throughout Southern Arizona.
What does the GGVCF Board of Directors do?
The Board of Directors provides governance, financial oversight, strategic guidance, and community leadership to support the Foundation's mission and philanthropic work.
What communities does GGVCF serve?
The Foundation supports nonprofit organizations and community initiatives serving communities throughout the greater Green Valley and Southern Arizona region, including Green Valley, Sahuarita, Amado, Arivaca, Tubac, Tumacacori, Rio Rico, Nogales, and surrounding areas.
How can I contact the Greater Green Valley Community Foundation?
The Foundation is located at 518 E. Whitehouse Canyon Road, Suite 110, Green Valley, Arizona 85614 and can be reached at (520) 600-8098.