Im so sorry to hear about your situation Karen. No mother should have to go thru this i put my mom thru this when i left home at 16 because of both abuse and Schiz issues. i didn't come back till i was almost 19 but went to jail right away for heroin got out went back 5 days later got out caught a new case went back 2 days later with another felony im now 22 and medicated i live with my mom my dad works out of the country and after finding the right combination of medicine i still hear the voices but i dont hear them like i used to and the delusions the paranoid delusions are getting better. i dont know what to say about your son except blood is thicker than water and i don't know what i would have done without my mother if i was still homeless dont get me wrong were not rich either i get my meds for free from the state u just have to look for those clinics but if you do get a place together make sure your room has a lock on it and his doesn't (so you can get in in case of an emergency) and make a no drinking rule and he has to go to groups the clinics will offer them i go 2xs maybe 3 a week. plus therapy. it has really helped me. when your son is medicated and in the right state of mind sit down and talk to him talk from the heart about how scared you are for him and how u want to help and how you will never abandon him again because he is scared of that deep down inside. tell him if it gets so out of hand that you have to hospitalize him then that's all you can do for his safety and yours and just let him know he has someone in his corner. or try a half way house to 3/4 house they're different than treatment facility's and though most of them are for drug users they do have some for mental patients especially in California that's where i was homeless. any questions and ill somehow get you my email address or phone number whatever your more comfortable with im 22 a female and Ive gone through a lot maybe i can help you im also trying to become a social worker because Ive been through it all abuse addiction homelessness mental health issues including Schizophrenia im now working well im off because im sick have just completed a year of school and am a board member at a company that hooks people up with mental health help. contact me if you want my contact info because i don't wanna post it publicly. (this is also my first night on this forum) but i have a lot of experience getting to know and help people online. also call a crisis line in your area and ask for advice they may have link ups to more resources than i do at the current time.

The first thing you need to do is find a way to not go through this on your own. Seems your family is doing the most unproductive thing that they can do - deny your son access to them. Find other people who have loved ones with schizophrenia and make friends with them. They are out there.
I don't know what your son has done in the past, so Im no judge of them turning him away, but
even though they are in some way afraid of your son, turning away from someone with schizophrenia would just cause them to fall further into whatever reality they are projecting, by isolating them.
He needs a guide, someone with a grasp on "what's what", a real voice in the midst of the voices he might be hearing that nobody else can hear. Somewhere in there is a person who wants to get better, or maintain a grasp on functional reality, even if that might not be apparent at all to you.
So if I was you I would seek all the free help and programs that I could, investigate these programs and 'specialists'/doctors thoroughly, and have a part in every step of his process because I think your involvement in his life can possibly be the most important thing for him.
And I wouldn't say this if I haven't been down to the lowest depths of existence myself, and I do not in any way underestimate the hardship of your situation: If you lose everything, you have everything to gain again, so I wouldn't even factor financial status into it because there IS help if you search enough for it.

Yeah just go to a pranic healer, all the voices will go away. I was hearing voices for a while and they went away in a matter of a week.