While agree with Truffle there is no reg requirement, in correspondent lending you have to play by the golden rule - "they who have the gold make the rules".
I had dealt with Indymac for their idiotic interpretations of the regulations for many years, finally figured I wasn't going to convince them to re-write thir policy. Look to see if the address requirement is in their documentational requirements. If not talk to them.
A lot of times, they have quirky requiremens because they got burned in a lawsuit and came up with a rule to prevent it from ever happening again (or at least until the next lawsuit they lose.)
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Integrity. With it, nothing else matters. Without it, nothing else matters.