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Hello, my name is ***** ***** I will try to help you. Please remember I just report or interpret the law, so the outcome may not be what you hoped for.
What state are you in? Did the lease with the old property manager terminate or did it continue in effect? Did you make any inquiry when the rental payment changed?
I will do some research and get back to you.
Unfortunately you will be liable for the under billed rent. You are contractually obligated to pay the rent set forth in the lease. The under billing is an error not a waiver of the correct rental payment under the lease. Since they made the demand for the under billing amount before the expiration of the statute of limitations for a breach of contract in Oregon they are entitled to collect the amount due under the lease. Because of their billing error you would not be liable for any late fees.
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