Also wanted to chime in. Both of mine were ferals, though I did not socialize either of them (answered posts from foster moms).

I have a feral community in my yard now. I water but don't feed unless it's REALLY cold (the dumpster is in the alley behind my house & they seem quite well-fed), but I do let them in the garage with a space heater when the weather gets terrible. Like when it hit -30 last winter. All of the ones that I was watching out for then made it.

I'm pretty sure they have a "home" inside an old truck cap that is in my neighbor's yard, too, but I don't think he knows about it.

I have taken my Skunk-kitty out on a harness and run into Mama cat - I didn't let them touch but they wanted to be friends, so I think I might be ok if I end up taking one or more of these guys in someday.