DAN SADLIER’S HIKE TO END HOMELESSNESS

In February 2026, City Relief Sr. Director of Development, Dan Sadlier; CEO, Josiah Haken, and Board Member, Mark Reitsma, will climb the highest mountain in Africa in solidarity with their unhoused friends and City Relief guests that are facing their own hurdles, barriers, and mountains on a daily basis.

Travel with them to Mount Kilimanjaro, a dormant volcano in Tanzania and help end homelessness with your generosity.

DAN SADLIER

TEAM MEMBERS

  • Josiah Haken

    Josiah Haken is the CEO of City Relief, a nonprofit organization that connects people experiencing homelessness and poverty to the resources they need to thrive. With 15 years of hands-on outreach and leadership experience, Josiah has helped shape one of the most innovative and compassionate models of street-level engagement in the country.

    His insights on homelessness, poverty, and public policy have been featured in national publications, including The Washington Post, New York Daily News, and FoxNews.com, where he advocates for systemic change through stories rooted in dignity and truth.

    Join Team Josiah here!

  • Mark Reitsma

    Mark joined Regency Wealth Management as a Partner in 2010.

    Mark has held active roles as a Trustee / Board Member with various Non-Profit Organizations throughout the years including Christian Health, Eastern Christian School Association, & the Bergen County Chapter of the New Canaan Society.  He has a strong passion for helping those struggling with poverty and homelessness which is why he is currently serving in his 14th year as a Board Member of City Relief.

    When not working or volunteering, Mark enjoys music, outdoor activities, travel, & spending time with his wife Pamela and their five children.

    Join Team Mark here!

  • Dan Sadlier

    Dan Sadlier is Husband to Amanda, Father of 6, Pastor at Mosaic Church NYC, and currently serves as the Senior director of development City Relief. Dan has a strong belief that our ability to care for and learn from our most vulnerable neighbors is pivotal to carrying out the gospel of Jesus and becoming more like Christ.

    Join Team Dan here!