Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Martin Dennis Koop, Practice Areas Lawsuit / Dispute Attorneys. is located in the city of Tiffin, the state of Ohio. Attorney legal address Martin D. Koop Attorney at Law215 Jefferson St.Tiffin, OH, 44883-3030. For more information, please call (419) 939-3884 Your comments* (not for publishing) * — Required information Martin Dennis Koop ← View details Martin D. Koop Attorney at Law215 Jefferson St.Tiffin, OH, 44883-3030, Tiffin, Ohio (419) 939-3884