Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Benjamin L Kleinjan, Practice Areas Criminal Defense Attorneys. is located in the city of Brookings, the state of South Dakota. Attorney legal address Helsper & Mahlke, P.C.415 8th St SBrookings, SD, 57006-4907. For more information, please call (605) 692-7775 Your comments* (not for publishing) * — Required information Benjamin L Kleinjan ← View details Helsper & Mahlke, P.C.415 8th St SBrookings, SD, 57006-4907, Brookings, South Dakota (605) 692-7775