1)
What are "Davar" and "Bein Ish u'Vein Re'eihu" referring to?
1.
Mechilta: "Davar" refers to issues concerning Tum'ah and Taharah, "Bein Ish", to money-matters that cannot be compromised and "u'Vein Re'eihu", to money-matters that can be compromised - where the litigants come out friends..
2)
What is "Ba Eilai" referring to?