Aloha Dan. Thank you for your comments. Here is a link to a good piece in Civil Beat recently by Natanya Friedheim. Natanya points out that the problem is not just finding available public housing for homeless (she lists public housing available) but also the lack of life management skills of homeless people, who have been living on the streets so long they have difficulty dealing with the everyday demands of renting an apartment.  Getting hard-core homeless into housing and making the transition work is a complex, multi-layered problem..Also, finding landlords willing to accept homeless tenants. http://www.civilbeat.org/2017/09/convincing-landlords-that-housing-the-homeless-is-good-business/