The Ignatian Spirituality Project (ISP) began in 1999 in Chicago when Fr. Bill Creed, SJ was asked to make the Spiritual Exercises of St. Ignatius available to people with experiences of homelessness. Today, ISP is an international network with retreat programs in 30 cities in the United States and Canada. Over 800 volunteers serve more than 2,000 retreatants a year through over 200 retreats.
You can find more information about the ISP program here
An article about the program was written by By Krista Bowman and Kevin Kelly, SJ (members of the ISP-Toronto Team) from Regis College in Toronto
A lovely article was written about the program in the Catholic Register