In short, no.
I will say that this is one of the few times I have heard of a FI not registering for NMLS. What happens when you bump up against the threshold and a customer wants a mortgage? Do you turn them away?
Pony up the cash and get your FI and MLOs registered.
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Maybe you just wanna fly the plane yourself. Well good luck pressing take off, then auto pilot, then land.
CRCM