Your auditor is smoking/drinking something funny.
The aggregate adjustment can be any figure less than $0.00. It really doesn't matter if it's a rounding factor or not. It is still an aggregate adjustment to the escrow analysis.
I've been using David's analysis worksheet for over a year, and I have yet to find a mistake (unless we entered something wrong).
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The opinions expressed are mine and they are not to be taken as legal advice.