When there is ambiguity, can context during negotiation proceedings be bought as evidence to clarify?
Obviously no lawyer worth their salt is going to clarify ambiguity via email instead of redlining the contract with a change, but post-contract ambiguity can often be discovered.
You control-v a bunch of code from a copyrighted source. You then change all of the code semantics, syntax, etc.
While not your lawyer example, a very common example developers would follow while infringing on code. I can think the same for someone writing a manuscript or other large work of writing
Obviously no lawyer worth their salt is going to clarify ambiguity via email instead of redlining the contract with a change, but post-contract ambiguity can often be discovered.