Hector Lewis MacQueen, University of Edinburgh School of Law, has published Scots and English Law c.1603: Uniting or Dividing Kingdoms? as Edinburgh School of Law Research Paper No. 2014/15.
Here is the abstract. A brief discussion of how Scots and English lawyers saw their respective laws and legal systems at the time of the Union of the Crowns, when the prospect of a union of laws was also put before them.Download the paper from SSRN at the link.