“The Lancaster County Coalition to End Homelessness has made impressive progress in tackling homelessness, including achieving ‘functional zero’ for veterans. It means the coalition, since July, has the capacity to house any vet within a month of becoming homeless.” - Lancaster Online

This article at Lancaster Online indicates that suggests that local efforts are close to ending chronic homelessness.

Homelessness is the condition of people without a regular dwelling. People who are homeless are most often unable to acquire and maintain regular, safe, secure and adequate housing, or lack “fixed, regular, and adequate night-time residence.” The legal definition of homeless varies from country to country, or among different jurisdictions in the same country or region. - WikiPedia

The National Alliance to End Homelessness’s Fact Sheet on Chronic Homelessness addresses some of the questions about chronic homelessness.