1)
What are the implications of the word "Mishpat Echad Yiyhyeh lachem"?
1.
, Kesuvos, 33a: To teach us that everyone has the same Din - with regard to Eidim Zom'mis, who do not
2)
Why does the Pasuk insert the phrase "Ki Ani Hashem Elokeichem "?
1.
Rashi and Seforno: To teach us that Hashem is the G-d of everyone, that He assigns His Name to the Geirim just as He assigns it to us.