You need to look at what the written lease says in order to determine what obligations and rights you have. The landlord is NOT entitled to double-dip and collect rent from you as well as a new renter, that is for sure. The landlord also has an obligation to mitigate their damages and re-rent the premises for the same price to another tenant as soon as they can find. So, you are correct that the landlord can't collect double rent for the same unit. You might need the services of one of us attorneys who practice landlord-tenant law. There are many good attorneys here on Avvo.
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Mr. Leroi has given you great advice.
You will receive a security deposit accounting and likely this will be accompanied by a demand for payment for rent and the lease break fee. I recommend contacting an attorney to review your lease to determine if the apartment can charge both or if they are limited to one or the other. You also want to ensure that your security deposit is handled correctly.
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