Seller Carry-Back

[Rivers Plowden]

I have heard of others using a seller financed carry-back as a 2nd position to finance a purchase.  However, I am being told this is not possible by the bank.  Is it not possible to say, on a purchase price of $100,000, take a conventional for 60% ($60,000), and then rather than a cash down payment, have the seller carry back a note for the remaining 40% ($40,000)? I understand this is a 100% financing situation, but I just read the other day someone using this strategy.  Do I just need to find the right bank?

Any insight is greatly appreciated.