At a high level the process will look something like this:
1) Status: Awaiting Response.
2) Action: Add Note
3) Condition: Does Note subject contain XYZ?
go back to Awaiting Response status
go to Status: Reviewing Response
4) Status: Reviewing Response
(the trigger will fire whenever it sees the process in the Reviewing Response status)
(the trigger will call a stored procedure that will update up to ten fields with a Yes, No or N/A)
(the stored proc will update a separate field called ResponseReviewCompleted to 1)
5) Precondition: ResponseReviewCompleted = 1?
6) Automatic Action: Set ResponseReviewCompleted = 0
7) Condition: Are any of the ten fields Null?
Go back to Awaiting Response
I don't see any problem with the above except that I don't know how to get my process to wait for the stored procedure to complete. I'd strongly prefer not to call out to LPM for this due to performance considerations.
I had the idea of using the ResponseReviewCompleted field but unless the process engine is constantly monitoring for changes in the database, I doubt it would work.