But it's nice anyway because it gives them notice that they don't need to freak out and plan to move out every year because the lease might change and need a complete re-evaluation. 

Different states may vary, but once they miss their closing date, notice is sent they breached the contract, you are moving on, etc. and you can relist/sell the property.

And she kept complain that my house is very dirty and damaged her health.On 1st June, she should pay the June rental fee, but she did not pay, and she did not give me any notice to intend to pay.

We are more likely to see a much more "normal" deleveraging.What I have noticed is a lot more private money is deploying into real estate again relative to the last five years. 

The neighbor picks up garbage off the sidewalks, sweep it daily, pull garbage pails in, change bulbs in the common areas, and advise me if snow cleaning is performed.Given he's been there for 40 years, the condition of his apartment if you don't plan on upgrading is another $50 to $100.

This is extremely common in the multifamily space and is a reasonable contingency.What is your strategy to get a place under contract?

Today I received a notice stating that I should schedule a walk through with an assessor to get a more accurate assessment.

We also have to give tenants 30 days notice if we’re raising rent less than $100 and 60 days notice if we raise it more than $100.  

Using non-rounded numbers is a common and effective negotiating tactic.

What is the best way to serve them notice before beginning the foreclosure process?