Business Clients David Liston investigative services are utilized by law firms, attorneys, businesses, and legal professionals nationwide. Below is a partial list of businesses to whom I have provided investigative services over the years. Harper Law, Kirkland, Washington David Fine, Civil Deputy Prosecuting Attorney, Chehalis, WA Davies Pearson, P.C., Tacoma, Washington Baresford Booth, PLLC, Edmonds, Washington Kane Consulting, Syracuse, Utah Iurillo and Associates, P.A., St. Petersburg, Florida Fortegra Financial Services, Jacksonville, Florida Law Offices of Joan E. Cook, Missoula, Montana Hal DeBecker Investigations, Las Vegas, Nevada Nationwide Management Services, Inc., Maricopa, Arizona American Truckers Legal Association, University Place, WA Certified Backflow Assembly Testing, Tacoma, Washington Ekman, Bohrer & Thulin, P.S., Seattle, WA Return to Feedback From Clients Contact DLIS for a free consultation.