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Greater Green Valley Community Foundation

About Greater Green Valley Community Foundation


Fiduciary Duties Of Board Members

Duty Of Care: Board members must discharge their duties in good faith.

Duty Of Loyalty: Board members should avoid using their position or the
organization's assets in a way which would result in gain for them or their family.

Duty Of Obedience: Board members have a duty to follow the organization's
governing documents.

Board of Directors

Marty Taylor:President


Patrick Sedillo: Vice President

Patrick and his wife, Cindy, moved to Green Valley in 2004. Patrick retired from IBM after a 32 year career. He is currently the Managing Broker and co-owner of HomeSmart Pros Real Estate. Patrick is proud to be the foundation VP.

David Chasney: Interim Treasurer

Hailing from Detroit, Michigan, David's business career has taken him to both coasts as well as several locations in-between. After nearly thirty years with Honeywell followed by nine at Raytheon in Tucson, he retired in 2016 and moved to the Green Valley/Sahuarita area last November to continue participation in several community groups. David has been active with numerous not-for-profit organizations through the years and joined the Community Foundation Board in March 2017 to utilize his experience in helping the community he now calls home become more vital, empathetic to the needs of others and attractive to new residents. 

Jim Nelson - Treasurer

Jim Nelson came to Green Valley to serve as the Superintendent of Continental Schools. With a graduate degree from the University of Iowa, Jim has spent his career as an educator. He and his wife of 43 years, Candy, have two grown children. Giving back to this community is Jim's reason for serving on the Greater Green Valley Community Foundation Board of Directors.

Julie Demchuk- Secretary

Julie originated from London, England and has lived in Green Valley for over 17 years with husband Jeff and her two dogs Tuesday and Kita. Julie has been in the banking industry for her professional life and is currently Branch Manager for BMO Harris Bank in Green Valley. She has been a long time supported of the Community Foundation winning ‘Celebrity Waiter of the Year’ twice. She feels an affinity for those that devote their time to charity work and is pleased to serve the Board of the Community Foundation 


Dr. Zulma X. Barrios

Zulma “ZX” Barrios first came to Green Valley as a “snowbird,” seeking respite from the cold winds of the prairies of Nebraska. She loved the Valley so much, she stayed. She joins the Foundation Board after three successful careers with large corporations: General Manager at Mutual of Omaha Companies, Vice President for Women and Diversity Leadership at The Gallup University and independent multicultural consultant to the Chairman’s Council at State Farm Companies. She is an expert in leadership development. At present, she also serves as Senior Advisor to the Fundacion del Empresariado Sonorense, AC (FESAC) in Nogales, Sonora, Mexico. 

Dr. Eva Maldonado

Eva came to Arizona from Miami, Florida. After retiring early from her first career in the Federal Court System, she runs Clinical & Forensic Psychology private practices in Tucson and Green Valley. She was raised in a military family where she was taught early on the importance of integrity, family, and service to others. It is her desire to empower others and create change by sharing her knowledge and experiences. 

David Polsky

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 25 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.

Dave Sielken

Dave and his wife of 47 years, Linda, moved to Green Valley in January of 2014. This followed retirement after 46 years in the materials business, the last 40 serving the global semiconductor industry. He managed and was a member of several teams in his career that provided a broad perspective of resource generation and disbursement. A father of two and grandfather of three, Dave is an avid golfer as well as active in his HOA Board. He and Linda are full time "GV'ers" and enjoy many of the stimulating opportunities available in Southern Arizona. 

Howland Swift

Howland Swift attended Cornell University for a BS & MBA at UCLA. He has had three careers, 1st in hotel and food service management, 2nd as a real estate developer and 3rd as college and university fundraiser consultant. He is married with 5 children, six grandchildren and one great grandchild. Friends brought him to Green Valley last year and he decided to stay. He is delighted to help GGVCF and the community given his experience as a non-profit fundraiser.


Michelle Phillips-Executive Director

Dormi Torrey-Office Administrator