He addressed the Justinian Code a few months ago here, at least for the rest of Europe.
The eventual political structure of the Triple Kingdom could vary from a unitary state to a more likely federation or near federation that includes the overseas parts of the Empire. This is what I was getting at in my post.www.alternatehistory.com
The Sideroi Reorganization may have made some changes to Rhoman law but no way would it do away with the fundamental basis. Rhomania has to use Roman Law after all.
Awesome, thanks for the link!