Capital to finish duplex being bought via seller financing

[Peter Fennig]

So I bought a duplex in April  where the seller financed the deal. The purchase price is $15,000 at $400 per month, 0% interest, for 24 months at which point the remaining balance is due. On top of that I put $2,500 down that goes toward the purchase price. My question is what should I do to get the funds to finish this property? So far I've done all the repairs and upgrades myself which has saved me with labor cost, but with funds dwindling down to finish the house, I was wondering if anybody has adivise on what options I have with getting financing to finish sooner rather than later? I've already added a substantial amount of equity into the property with the repairs and upgrades I've made so far, but I'm not sure what approach I should take with a lending institution since I'm buying the house on contract and don't have the deed in my name yet? I'm in Fort wayne Indiana