
I had a 'return to me' clause on our sale contract, which should cover the life of the puppy although all too often people don't want to admit they had to make a decision to let the puppy go, for whatever reason, so whether I'd have ever known, I don't know. Happily having only a comparatively few number of litters and not often a big litter at that, I managed to keep in touch with most of my buyers, some becoming close friends over the years. So I think I would have known.
This what happens afterwards always worried me, with those I'd bred myself especially. Now I have two from other breeders, and both have said they'd always be there for them I feel slightly better coupled with while my sister was alive, she knew what my wishes for them were. Sadly we lost her a couple of years, almost, now so yes, this situation is always back of my mind. I just hope that by the time both of us has gone, we'd have no hounds to worry about. I have registered them with Cinnamon Trust, but I'm not really convinced they'd do what I'd hope if needed. I'd hoped, for eg. that they would have somebody local who I could get to know, and who would know my hounds before they might be needed. Not so.
I think you can but put a return to you clause in your sale agreement, and keep in regular touch with this new owner and perhaps get him to write a clause in his Will which hopefully, will be upheld. Stressing that you will be there in the event you are needed!! I think most good dog owners are aware of what might happen in their event their pets outlive them.