I am very happy to read that she's been found. Your h's family needs to consider getting a tracker for her. They can either be in a necklace form or like a watch on the wrist. I know of several people who suffer from what your MIL does and the family got them the wristwatch type of tracker and it works beautifully.

Again, I am very happy that she's been found alive and doing okay.

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.