Do I have a case against my landlord?

I am currently in a housing program called pathways to housing for people with mental disability. I have been in this one apt for 5 yrs. Pathways pays the rent directly to landlord. Landlord has complained for past 5yrs that they are late with rent every month. Landlord didn’t want to renew lease n pathways never let me know until week before I needed to be out. They never informed or took me to see another apt. they moved me into a small one room apt that my furniture would not fit into it and it’s a 4fl walk up and I have medical papers stating I have asthma and diabetes and high blood pressure and cannot walk up stairs. They have not given me new furniture they just moved me into this box and left me.