Count on it! We lenders will always pull a "Refreshed" credit report prior to funding. So you can go all the way through the process until the very last minute and have the carpet pulled out from underneath you. I encourage you always be straight with your Loan Officer. When you signed an application, and subsequent forms, you were warned about not disclosing your debt. That's loan fraud and I can assure you, it's serious business now. My recommendation is contact your LO and tell them of the new debt, the only thing you have to worry about is being able to qualify with that new payment and to show the paper trail of those funds to close. Just my opinion, good luck with your decision.