'This document is not required to, and does not, contain all information.'
or does 'contain' serve two functions which should be distinguished, at least in formal English (in this case, a legal document), so:
'This document is not required to contain, and does not contain, all information.'
Thanks, and yes, that would make sense in any other case. But I'm afraid the wordier and more stilted the English is in a legal document, the better, and a lawyer would see any correction into plain English as both needless and, for a legal document, unidiomatic. So, the essential structure has to remain and, given this, my question is simply whether or not the first sentence is acceptable.