Having served on university faculties and on the Board of Education of the largest school district in Texas, Lopez has utilized his background and expertise in the handling of cases involving schools, colleges and universities. He has handled cases involving student discipline, faculty rights and tenure, academic freedom, and special education, among others.

Lopez has represented, students, staff, faculty and administrators of colleges and universities in matters involving grades and discipline, discriminatory practices, class assignments, tenure applications and considerations, disputes of or with governing bodies, and other higher education disputes.  He also has represented public and private school students in matters involving placement, grading, and disciplinary actions, among others.