Complex sentence: It is required that half of the students in the Academies be from Englewood and some parents have seen this problem as a reduction of education quality since the admissions for Englewood student is not nearly as selective due to the higher quota.
Split into simpler sentences: It is required that half of the seats for students in the Academies be reserved for students from Englewood. Some parents have seen this problem as a reduction of education quality since the admissions for Englewood students is not as selective due to the higher quota.