Jacob Milgrom (1923-2010) was a Conservative rabbi who is best known for his magisterial commentaries on Leviticus and Numbers. Milgrom belongs to a group of scholars like Hurvitz and Weinfeld that breaks from traditional dating of P, positing a pre-exilic date; preceding D and near the same period as J. This allows P to more easily reflect the realities of the first temple period. Contrary to earlier critical scholarship that saw a break in religious tradition between the biblical period and Judaism, Milgrom holds to this continuity and copiously cites rabbinic and medieval interpretation in his Leviticus commentary. Milgrom also extensively cites ancient Near Eastern parallels to understand ritual and sacrifice in ancient Israel.
"Pentateuchal Studies Today" by Gordon Wenham (here); Oxford Handbook of Jewish Studies, chapter 2