I made two appointments to look at the old house, one with a builder who is a certified aging in place specialist today, one with a designer tomorrow. I liked today's person. While he didn't seem to know much more than ADA requirements, he seemed to get my vision for the house and be able to work with our timeframe. He said we would have a hard time finding a house with as good an entrance (no step at all from the carport to the lower level) if we went looking for one. There are some questions about perhaps expanding the bathroom or making a new door between rooms that need more thought.
Most important, our daughter, who had never been in the house, liked it.
I went up to North Carolina to see a friend this evening and it is late. I will write more tomorrow after the second appointment.