What are implications of "Ki Yih'yeh b'cha Evyon"?
Rashi: The more needy the poor man is, the more he takes precedence to receive Tzedakah. 1
It is not clear how Rashi (who is actually quoting a Sifri) extrapolates this from the words in the Pasuk.
What are the implications of "me'Achad Achecha"?
It refers to your paternal brother, who takes precedence over your maternal brother.
Why does the Torah write "In one of your gates"?
Rashi: To teach us that, in the realm of Tzedakah, the poor of one's own town take precedence over the poor of other towns. 1
What is the difference between "Lo Se'ametz ... " and "Lo Sikpotz" ... "?
Rashi: "Lo Se'ametz ... " comes to counter the person who is distressed when he has to give Tzedakah, 1 whereas "Lo Sikpotz ... " comes to counter the person who closes his hand and refuses to give at all. 2
Why does the Torah refer to the poor man as "Achicha"?
Rashi: If you decline to assist him when he comes to you for help, you will become his brother (in alms).