Mark Casto is a paralegal at MacDonald Law PC and Black Lion Services, PLLC, helping assist attorneys with Civil, Business, and Sports Law matters. He recently graduated Summa Cum Laude from Suffolk University (2025) with a B.S. in Legal Studies, during which he gained valuable experience through internships involving criminal and immigration law. These opportunities have provided Mark with a broad foundation in multiple legal areas, enabling him to better support both attorneys and clients.
Raised by two educators, Mark grew up with a strong appreciation for discipline, service, and continuous learning. Their influence instilled in him a passion for helping others and a commitment to making the legal process more accessible and understandable. With a well-rounded foundation and a client-first mindset, Mark is driven by a desire to support attorneys and empower clients through clarity, diligence, and care.
In his free time, you will find Mark golfing with friends, enjoying sporting events in Foxborough or Fenway Park, and trying new types of food.