I would send him one more email asking about the vacation home and keep the request simple. State that if you don't hear from him by a certain date, you are going to assume it's okay.
Obviously, he had other things on his mind like the business that took his focus off your question. They can't focus on too many things at once. Now that the audit is over, send him the request. He may very well answer.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
