A bit of an update.
With 'unofficial' advice from a friend in the legal profession, he indicated that I had every right to read the letters and notes, and also that very specifically, my son should NOT read them or be told of their very existence. If the question comes up, then I will tell...
Thank you all for your replies. Thankfully, last night she moved the last of her things out of the apartment, and basically it has been rather 'amicable'. She still has feelings for my son, and left a few notes for him which I will copy as evidence of her stating that "she has moved out and...
Hopefully some of this will be moot, but I would like to know my rights for the future, just in case.
Here is the situation: I own a building with my business located in it and it has 2 apartments upstairs. I have sometimes stayed in one of the apartments if I'm working really late and just...