My parents are buying a house that's a 15 minute drive from where we live. It has been a long journey and it's not over yet. They plan to put their house on the market in a few days. They are stressed out, scared, and perhaps a little excited. They will be here at the end of August for settlement. The house they are getting will need some work: they are going to add a walk-in shower and install the washer/dryer on the main level. The walls need paint and the floors - refinishing. So they will need to hire a contractor to do the work. They also need to figure out the moving stuff - the costs, the companies, loading/unloading the grand piano.
This is going to be an adjustment for everyone. Adjustment of expectations and relationships. It's been a long time since I've lived near my mother. I predict some friction and hurt feelings on all sides.