The Team
Who We Are
Mitchell Senti
Lead Pastor & Co-Director
Mitchell serves as the Lead Pastor and Elder of Envision Mission and Co-Director of The Summit Houses. He and his wife Rochelle live in Bellingham with their three sons—Johnathon, Elisha, and Peter—and founded the Envision community in 2003. Since November 2018, Mitchell has provided a steady pastoral presence at each of the Summit Houses. He is deeply encouraged by the vision and future of the Summit House Discipleship Program and is passionate about helping men and women discover a sense of belonging in the Church and in their vocational calling as disciples of Jesus.
Aaron Speyer
Co-Director
Aaron has serves as Co-Director of The Summit Houses, bringing wisdom and experience to both guests and staff. He and his wife, Megan, have two sons, Issac and Thaddeus, and a daughter, Miriam. With 15 years of experience as a chaplain at Lighthouse Mission, Aaron has walked alongside countless individuals facing homelessness, addiction, and hardship. His passion is to bridge the gap between the disenfranchised and the Church, fostering meaningful connections that lead to transformation.
Miles Davis
Program Administrator
Miles joined Envision Mission in 2020 and serves as the Program Administrator for The Summit Houses. He and his wife Jessica married in 2025 and now live in Sumas. Over the years, Miles has served in youth ministries, overseas missions, and multiple churches. Once caught in a battle with alcoholism, he is now grateful to see Christ redeem his story—using it to walk alongside those facing addiction and other challenges. His passion is to help others discover the same hope, healing, and deep relationship with Jesus that transformed his life!
Martha Kooiman
Women's Program Coordinator
Martha serves as one of the Women’s Program Coordinators for The Summit Houses. She graduated from Dordt University in 1985 where she met her husband, Darryl. They have 6 children and 15 grandchildren. Active members of Second Christian Reform Church, they got involved with the program when the church sponsored a men’s house. When the women’s home opened, she felt called to serve. Martha is grateful to be part of the team and is passionate about supporting women as they grow and reconnect with the church and community.
Dolores Bosman
Women's Program Coordinator
Dolores joined Envision in 2023 as part of the Women’s Summit House team, first as a volunteer and now as a Program Coordinator. She and her husband Karl have been married 51 years, with four children and ten grandchildren. A longtime nurse in PeaceHealth’s Childbirth Center, Dolores supported moms facing addiction and saw firsthand the challenges they face. Now retired, she brings that compassion and experience to her role, walking with women as they grow in faith and pursue who God created them to be!