I am assuming your DTI (Debt to Income ratio) went up or something popped up on the credit. I would recommend you obtain a second opinion from another Loan officer.
Be patient and know that what's for you, is for you! Get to work on your solution RIGHT AWAY! The contract says "time is of the essence" and in times like this, that couldn't be more true.
Sadly there are good loan officers and bad ones, good real estate agents and bad ones. Years of experience while useful is not always a good indicator of their prowess at their job. Sounds like your realtor is being aggressive in pursuing other avenues so you don't miss you.
Best of luck to you.
If you would like to speak directly please let me know. Payment shock has been used in the industry as almost a generic reason for denial. Credit and DTI will come into play also. Loans are usually denied when there are several adverse factors. Is there anything else with your loan profile that would cause the denial?
Senior Loan Officer
1ST Mariner Mortgage
Lending in all 50 states