I want to say congratulations on the life change decision, but it sounds as if it's not completely voluntary due to the possibility of having to make yourself available for care for your bride. I hope that turns out to be not necessary and that she is back in total health soon.
Regarding future work for them, maybe consider negotiating a consulting position? It could afford more flexibility and probably tax breaks writing off home office space and vehicle expense. Check with an accountant on that possibility.