Another resources has been added to this blog to help you secure housing for people who are homeless. As you know, a person must meet the definition for Chronic Homelessness in order to be eligible for supportive housing programs. HUD compiled a document that details chronic homelessness, documentation requirements, etc.
Defining Chronic Homelessness - A Technical Guide for HUD Programs is available through a link to the right of this blog under Definitions Related to Eligibility.
For your convenience, you may access the guide here Defining Chronic Homelessness - A Technical Guide for HUD Programs