New construction timelines for financing

[Stephen Gibson Jr]

Hey there, 

I am currently in the process of buying my first property, I have an offer accepted on a new construction that is estimated to be completed in April. I have paid the earnest money and some lender fees. 

My current primary is a townhome that I inherited without a mortgage, I will be renting out this property and using the rental income to pay the new mortgage. I will need to live in the property until I can move into the new house. They will be using a percentage of this projected rental income to help me qualify for the new mortgage. 

I had pre qualified at an amount with a lender and made the offer based on this, the initial loan officer told me that I would need to show a 1 year lease agreement for the departing residence closer to closing which I am projecting to be around mid April (could be delayed since new construction anything could happen). He said they don't have to be moved in by closing, just that I need the signed 1 year lease agreement. 

However now the underwriters are saying they need the lease agreement now when I have just begun doing the necessary repairs and still need to complete township inspection process, based on the information from the initial loan officer stating I wouldn't need it immediately. They are asking that I re-apply for the loan once I have the lease agreement and we are closer to the close date. Which I personally am okay with but I am not sure if the seller will be.

My realtor wanting to speak with a supervisor at the bank to see if there is anything they can do for us, especially since the initial loan officer said we were good to proceed as is and I wouldnt absolutely need the lease agreement until 15-30 days prior to close. 

The bank reiterated that I still have the financing and the pre approval still stands however that its too far out to finalize the loan (I guess since I dont have the lease agreement).
Currently I am fixing all of the stuff in the house and preparing to get my township rental inspection completed.

Does anybody have any advice or insight for me ?

Thanks for reading