Some personal advice about how to domesticate a feral cat from someone who has done it twice.
There is a lot of literature online about how to domesticate a feral cat or homeless cat and feral cat rescue, but I can add to this advice with my own personal experience taking in two feral cats.
** I personally don’t recommend trying to domesticate an older feral cat who is aggressive or won’t allow a human to touch or come near him — especially if you already have cats in your home. Use your best judgment. **