Terrell has a dynamic practice with a mix of entrepreneurs and established, private companies. Because Terrell brings prior experience in the technology sector, many of his clients are associated with technology or related industries, many of which are medical device companies. His practice includes all aspects of corporate formation, mergers and acquisition, debt and equity financing as well as e-commerce, licensing, and software development.

Prior to attending law school and embarking on the practice of law, Terrell spent eight years as a management consultant, specializing in software design, development, implementation and integration. The first four years were spent with an international consulting firm. He then left that organization and assisted in the start-up and growth of a software and consulting firm specializing in forecasting software using neural network technology.