Conditional loan approval

[Parnell C.]

So we have a bilateral sale agreement on a foreclosure that has no contingency for selling my current house. After going through the underwriting process my lender has conditionally approval the loan with the sale of our current house. During the prequal I assured several times owning both wouldn't be a problem, which is very frustrating to say the least. Lucky our current house is under contract and scheduled to close before our purchase. My question is how do I handle this new contingency with the sellers? The deadline for loan approval is approaching fast.