Law School Faculty Email Collection

I am in need of a dedicated professional to assist me in collecting email addresses of law school faculty members in the United States and Canada for research purposes. . We need about 7,000 email addresses of faculty from law schools in the USA and Canada and we are open to various approaches. The sites that we have already selected have website directories and it is relatively easy to pull down the needed information. We need name, email, school, title and legal or subject specialty. Open to other collection strategies.