In short, yes it can be. There are only very limited times you can do this without being liable, and it will cost you more to defend yourself than to not do it.
What you are talking about is raising a defense to the property managers claim which, regardless of whether or not its allowed, will be your burden to prove should this end up in court. A better course of action might be de-fuse the situation and simply try to resolve it out of court.
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