put the report in a form that solves the problem and provides a useful product to the client?
There is certainly nothing in the current or any former appraisal standards that I know of that would prevent putting things in any "form." At least to some extent, all of them probably encourage the most useful form.
And just to avoid the prior confusion about whether USPAP defines "assignment."
From USPAP: "
STANDARD 2 does not dictate the form, format, or style of real property appraisalreports."
When the results are reported, are the reported results at all open to correction, modification, amplification, substitution or change
I would say that after reporting results you can engage in a new assignment involving the same property for the same client and generate more results that
1. address the same question, but are different from the first results (modify, change),
2. replace erroneous results (substitute),
3. create additional results not included with the first (amplify),
etc.
So, in short, I don't see any obstacle in USPAP to answering any legitimate question any cilent has. That said, we do have some obligation to report what the client asked and how we developed an answer. So, if you should happen to develop results for a client (to modify, extend, whatever, old results), you must have executed some scope of work, pursuant to some agreement with the aforementioned client to accept the assignment. That is, if you have new results, you must have had a new assignment.
BTW, have you realized yet that your prior statement is
USPAP does not define Assignment
is not correct?