What constitutes a poor person? If someone is a student, and they are living off of loans without a current income, are they considered poor and could one fulfill the mitzvah of Matanos L'Evyonim by giving charity to them?
Shulchan Aruch, OC 694:3:
אין מדקדקין במעות פורים אלא כל מי שפושט ידו ליטול נותנים לו ובמקום שנהגו ליתן אף לעכו"ם נותנים:
We're not particular regarding money of Purim, but rather, anyone who sticks out their hand to take, we give him. In a place where the custom is to give to even non-Jews, we give them.
So, when you ask if people with certain criteria
are considered poor and could one fulfill the mitzvah of Matanos L'Evyonim by giving charity to them?
the answer is that those criteria are unnecessary as pertains to Matanos L'Evyonim.