Professor Alvaré worked at the Office of General Counsel for the National Conference of Catholic Bishops, where she drafted amicus briefs in leading U.S. Supreme Court cases concerning abortion, euthanasia and the Establishment Clause. For the next ten years, she worked with the Secretariat for Pro-Life Activities at the NCCB. There, she lobbied, testified before federal congressional committees, addressed university audiences, and appeared on hundreds of television and radio programs on behalf of the U.S. Catholic bishops. Her scholarship regularly treats current controversies about marriage, parenting, and the new reproductive technologies.