About David Colin
David Colin Bennion studied at New York University and built a legal career centered on immigration and appellate work. He combined classroom training with early practical roles that placed him close to clients and courts. That mix shaped the way he approaches cases: practical, court-minded, and rooted in the procedural realities of federal practice.
He began in private practice as an associate at Thompson Hine in 2004. That role introduced him to litigation and the demands of working in a firm setting. In 2006 he moved into nonprofit practice at the Catholic Migration Office, where he worked as a staff lawyer handling immigration matters for individuals and families. Two years later he took a staff lawyer position at the Nationalities Service Center, continuing representation of noncitizens and helping to navigate administrative proceedings.
Across those positions he handled matters typical of migration and refugee services, from administrative hearings to federal filings. He prepared submissions to immigration tribunals and assisted clients through various stages of removal defense and relief applications. The records indicate a steady movement from firm practice into client-facing public interest work and back into litigation that frequently touched federal courts.
Mr. Bennion is admitted in several federal and state jurisdictions. His admissions include the U.S. Supreme Court and three U.S. Courts of Appeals — the 1st, 3rd and 4th Circuits — along with practice authorization in New York and Pennsylvania. Those credentials suggest regular appellate filings and the ability to appear in higher federal forums when cases require it.
He has been a member of the American Immigration Lawyers Association since 2007. That sustained membership reflects an ongoing connection to the professional network that serves immigration attorneys. His career spans both nonprofit and private settings, giving him exposure to individual client representation and the procedural complexity of appellate litigation.
As of 2026 Bennion continues to handle immigration matters and federal appellate work. He practices in state and federal courts, maintaining a caseload that reflects his years in migration-focused legal services and appellate advocacy.
