About Us Marc T. Valentine and Associates, P.C. handles a variety of legal issues, including personal injury, workers’ compensation, civil litigation and family law, but our expertise focuses on environmental, land zoning, IRS, and tax law. We have 11 years of experience in small business environmental services and environmental permitting. This gives us a knowledgeable edge on how the procedures and processes are done properly. We like to take care of your whole problem, instead of just one issue.