Life coaching for high risk populations

I’m wondering how I can create a profitable coaching business serving people who cannot afford to pay for coaching. I want to serve those in the criminal justice system and those who have addiction issues. I want to do private coaching for clients and this is something that the jail will not pay for (if the client is incarcerated) and the client definitely can not afford. When the client is released they need to find shelter, food, job and paying for life coaching is not feasible. I have researched substance abuse treatment centers that use life coaching as part of the curriculum but I’m not looking to open a facility. I’m stuck trying to find away to make a business work and make money.