I have two large dogs, both rescue; my older guy (Cajun) is from Katrina, and is probably close to 13 or 14. He's still in good health, but needs supplements each day, and care on stairs, and a sling for help jumping (e.g., into the car). My other guy, rescued from the south was a runaway gun dog, and when I got him was extremely fearful of everything (going in the house, car, etc.) and would run away any chance he got, and he had proved quite clever when fear drove him to open gates, etc. Several years later he (Skeeter) has become a "velcro dog," and is quite respectful, and listens well. Indeed, contrary to input from trainers I know, he might be untrainable off-leash. Within months he was completely trained off-leash, but has that extreme attachment to me. So my concern was that away he would try to run to find me. I have not left him beyond an afternoon or evening for the 2 years I've had him. Kayla met with me once and walked off-leash with me, Skeeter, and Cajun. She came to my house once to get the "lay of the land" and came, with my permission, with her good friend, Angie, who would be helpful as backup. I was concerned about my dogs being on leash for the week I was gone, since they were used to going everywhere with me in the car and walked 95% off-leash- but we walked together with them ON leash and they were fine with her. Kayla left my house immaculate (probably cleaner than it was), and my dogs were happy and had bonded with her. She kept contact with me by text, phone, etc. daily, so my stress about leaving them while I was cross-country was greatly alleviated. I highly recommend Kayla.