The Harrison Law Group, P.C. The Harrison Law Group, P.C. is based in Melville, New York. As the Founder & CEO of The Harrison Law Group, P.C., Brett J. Harrison is a dedicated and fierce legal advocate. Phone: 800-465-8795 445 Broad Hollow Rd., Suite 400 Melville New York 11747 United States Map Other Categories: Finance & Legal » Law |