About Us Looking for an experienced law firm in the Annapolis, Maryland, area? Trust the attorneys at the Law Offices of Thomas McCarthy, Sr, PC. Since 1998, we have represented the goodhearted people of Maryland through their legal matters. Whether you’ve received a traffic ticket or need representation during your child custody battle, we have the expertise and the experience needed to represent you during your legal matter. Call the Law Offices of Thomas McCarthy, Sr, PC at (410) 268-4016 to set up a free initial consultation.