How do I find a home for 8 feral cats?

So an elderly relative went to the hospital and is now in a nursing home. We don’t know if she will be able to return to her own home again or not, but it’s unlikely. She was sort of the crazy cat lady and has eight cats (at least she says so), all of which were strays she just started feeding and that ended up living in her house. These cats are essentially wild. They hide the instant you walk in the house and do not come out except for panicked runs from one hiding place to another. Even opening a can of cat food does not bring them out. I have been feeding them and cleaning the cat boxes for several days now and trying to be as quiet and slow as possible, opening the canned food very deliberately, but they show no sign of warming up. They would have to be trapped just to get them out of the house. Is it possible to find loving homes for cats that would need a lot of work just to get to the point where they don’t run and hide 24/7? I’m terrified that these cats could end up in a shelter where they’ll finally get put to sleep.