Not deliberately or negligently destroy, deface, damage, impair or remove any part of the premises or permit any person to do so; and shall not engage in any illegal conduct on the premises; and Act and require other invited guests on the premises, to act in a manner that will not disturb the neighbors’ peaceful enjoyment of the premises.

If you read OP, it states that previous tenants deliberately deliver their mail to their old address for some reason.

I got a hint when I was talking to my old boss about this property, now I think he might brought it up deliberately knowing I know little about Realestate The property was a disaster as it turn out, out of the 4 units, one upstairs unit is empty and smell so bad every time I enter there.

Understand that the principle holds that 10,000 hours of "deliberate practice" are needed to become world-class in any field.

No of course not.Now if you lie and deliberately mislead the property owner of the value of the property that is a different story.

That's fine, but who is deliberately being obtuse and/or ignorant for the sake of this argument?

Didn't do anything deliberately to interfere with house purchase. 

Some people make deliberate decisions, knowing it will cause them problems.

Take your time, learn as much as you can and then create a deliberate plan.  

This action is deliberate bad faith because it limits the escrowed amount agreed contractually and intended as security against damages.Good luck collecting it, because even if you win the judgement there's no way to enforce payment except through credit reporting and the possibility of settlement to clear the reported bad debt.