I have a lot of experience implementing software for a heavily regulated industry. The first challenge is, because of the legal architecture -- go study and diff the legal code for each of the 50 states to implement a tool like this, also, track all the updates to those laws.
I wouldn't be surprised by DocuSign's involvement as you describe, we have the same corruption in every industry, justified always by the same excuse "They're the experts! Who else would we (congress) ask?" I don't believe the ignorance of the massive conflict of interest in this approach is a coincidence but I digress.