Things have improved over the last several weeks, so we still have the cats. We finally got the them neutered/spayed, which I've been planning to do all along. When we got them they gave us some certificates that covered most of the cost. I was going to get it done sooner, but the only place that the certificates are honored is very busy and they were booked solid. Now that that's done, I'm hoping the cats will be less "independent" and less likely to "mark their territory". They've been doing good for a long time anyway now that their house and food is at the edge of the woods. They probably didn't like having to walk across the snow all winter. Now that the weather has been nice for a couple weeks, they've been coming up to the house when the kids are outside, but I haven't found any poop around the house in a long time. Only time will tell if this keeps up.