This is from experience. You should take control of their banking accounts and home ownership now not later. Go to the bank with your parents and tell the bank

This is from experience. You should take control of their banking accounts and home ownership now not later. Go to the bank with your parents and tell the bank you need to be added to their account. Talk with a lawyer or nonprofit and figure out how to add your name so your parents cannot literally sign their house away to a con artist.