Seller Financing Question

[Mika Jones]

An owner of a property that I am interested in is willing to seller finance a property that has 2 lots. One lot has a 1/1 home and studio apartment on it. The second lot is cleared, vacant and has its own tax bill.  After agreeing to the terms, am I allowed to sell that vacant lot to help with renovation costs on the home that is on the other lot or can I not sell it until I have paid the balloon payment? Is this something I need to have added to the aggreement?

Thanks in advance!