We have a 1st lien on a property that is located in an SFHA. If we take a 2nd lien on the same property, and the flood insurance is already for the max amount of insurance available through the NFIP, do we need to be listed as both 1st & 2nd mortgagee on the flood policy, or would it be sufficient to be listed as 1st mortgagee on the policy with no one listed as 2nd mortgagee, since we have both the 1st and 2nd lien?