About Timothy
Timothy Dinan is an attorney admitted to practice in Michigan and Arizona, as well as before the Sixth Circuit and the U.S. Supreme Court. He also holds admission in the Eastern and Western Districts of Michigan. Those admissions shape a practice that spans state and federal forums and reaches into appellate work.
He took his undergraduate degree at Michigan State University, earning a B.A. in Political Philosophy in 1988 after beginning studies in 1984. He stayed in Michigan for law school and graduated from the Detroit College of Law (now Michigan State University College of Law) in 1993. Those years on campus provided a foundation in legal analysis and courtroom procedure.
Dinan is admitted to several trial and appellate courts. The admissions include the Sixth Circuit, the Eastern and Western Districts of Michigan, and the U.S. Supreme Court, in addition to state admission in Michigan and Arizona. That range of credentials allows him to appear in trial courts and to pursue appeals when cases require further review.
Over the course of his career he has worked on matters that moved through trial dockets and into appellate briefs. He has handled litigation in both state and federal arenas and prepared filings for higher court review. The record of admissions indicates repeated engagement with procedural and substantive issues at multiple levels of the judiciary.
Clients and colleagues describe Dinan as methodical in his preparation. He tends to emphasize careful case development and attention to court rules. He writes briefs, manages discovery, prepares witnesses, and presents arguments in court when cases proceed to hearing or trial. His work often involves moving a dispute through the litigation lifecycle, from initial pleadings to post-trial motions or appellate filings.
Outside the courtroom, he draws on his political philosophy background when assessing institutional and constitutional questions that surface in litigation. That perspective can inform strategy in matters that touch on regulatory or public-law themes. He remains active in litigation and appellate practice and, as of 2026, his work focuses on litigation and appellate work.
