@Justin Tahilramani thanks, my agent didnt see evidence of cracking in the inside walls.

@Nathan McDonaldI agree with @Dan Vleck since you don’t have a move in check sheet you don’t have any evidence of what the condition of the unit was when they moved in.  

The Chinese would have the world believe Wuhan is back-there is no evidence of that.

Without evidence that would be difficult, another point for 24 hour video monitoring.

However, they were built in the late 1990s and evidence of that is all around, with floral wallpaper and gold hardware throughout the property.

If you wait for both move in and payment, ask her to show you evidence she has the funds, such as a bank statement or ATM balance. 

Tenant now is threatening to "talk to his lawyer" for the pain he / his family (wife + baby) have been through, and that he is "collecting the evidence". 

You did a fantastic job turning the first complex around, which is evident that a good PM is not an expense - they are an investment.Based on those numbers, gross rents went up $12,500/month (150,000/year), assuming a modest cap rate of 6.5% that is an increase in value of over $2.3MM (don't know the cap rates in Calgary). 

If you can get evidence of this, they can be held liable for not disclosing.

Keep the letter unopened as evidence or keep the receipt as evidence that you followed the law.As far as the threats of litigation, I would not tell him "I will see you in court".