Complex sentence: In 1984, Brill was instrumental in establishing the Legal Writing Institute (LWI), an association of legal writing professionals who, until the establishment of the LWI, had no opportunity to exchange ideas or to compare experiences as to status at their schools.
Split into simpler sentences: In 1984, Brill was instrumental in establishing the Legal Writing Institute (LWI), an association of Legal Writing professionals. Until the establishment of the LWI, Legal Writing professionals had no opportunity to exchange ideas or to compare experiences as to status at their schools.