Do you want to buy their furniture? Or are you being pressured into it? If the latter, don’t do it. If you really want to buy it, and the price is fair, then after the sale is concluded, and not as part of the transaction, you can do it. Just don’t tie the two transactions together, or allow yourself to be pressured. A lender that approves a short sale doesn’t automatically have dominion or control over the borrower’s personal property. What’s being short-sold is only the real estate. The borrower’s sofa and chairs are his to dispose of as he wishes!