If your tenants are on a month-to-month, then simply write an addendum to their leases explaining the new property boundaries/whatever.

You can then send them a letter explaining the rent increase and to contact you with any questions.

Quote from @Anthony Ziccardi: @Wesley W.thank you for your response my lease does state all common areas must remain free from any personal belongings as well as they assume liability to any left or damage to personal property in carports and driveways.Should I call are for claims lawyers in preparation for a possible caseI would explain to the tenant your position regarding the incident, then leave it at that until if/when they decide to bring you to small claims court

Could you help explain.

But adding a little bit more detail and explaining your thinking will go a long way in truly coming up with a real plan.Makes sense?

Make sure it explicitly explains the process for termination if you are unhappy with their services, but especially if they violate the terms of your agreement.3.

It did not get rid of mold staining though, which they explained pretty thoroughly.

Explained in first part of post What was the outcome?

I dont understand how people can lie on official legal documents and get away with it.you can argue that different people calculate sqft differently but the margin of error can explain 100sqft (the condo is not that big). also no unit as ever been listed for over 1300sqft in the history of the building! 

Explain your situation and try to ask as many questions as possible.