Flood is a dwelling related loan. Which would mean if the loan is secured by two separate duplex buildings, You would need a flood determination that identifies each building securing the loan. You cannot safely use one house number and assume the result applies to the other duplex simply because both sit on the same tract.
The Interagency Flood Q&As are very clear on the underlying principle: when a loan is secured by multiple buildings, the lender must determine whether each building securing the loan is located in an SFHA. The regulation requires use of the standard determination form for the building or mobile home offered as collateral. However, based on your vendor two separate flood certificates don’t necessarily mean two completely separate orders if your vendor has a way to run both buildings in one transaction/package. But the documentation must clearly identify and provide a determination for both structures. One determination using one duplex’s house number is not sufficient documentation for the second duplex.
NOTICE: This email message, including any attachments, is intended only for the addressee, and may contain confidential and privileged information either as protected work product or confidential client information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, do not read, copy, retain, or disseminate this message or any attachment, and please contact the sender by reply e-mail or at 888.760.5646 and destroy all copies of the original message and attachments. Neither the transmission of this message or any attachment, nor any error in transmission or misdelivery shall constitute waiver of any applicable legal privilege.
THIS EMAIL AND ITS ATTACHMENTS DO NOT CONSTITUTE LEGAL ADVICE