Holman owns and manages King Lake Wilderness, located in the western Upper Peninsula's Covington Township. He is a founding director of 1st State Bank and a managing partner of PN Investments LLC. Holman is currently Chairman of the Michigan Chamber and a Director of the U.S. Chamber of Commerce. He is past president of the Steel Founders Society of America and of the Saginaw Valley Torch Club. He is Chairman Emeritus of the Bay Cast Companies, which he founded. Holman is an experienced outdoorsman and spent 12 years as a director of the Great Lakes Shipwreck Historical Society and owns and has restored Granite Island Light Station which is host to several NMU projects. He has a bachelor's degree in business from Northern Michigan University and is a recipient of NMU's Distinguished Alumni award.
Holman, of Freeland, was appointed to the Board of Trustees by Governor Rick Snyder on February 7, 2014, for a term beginning February 8, 2014. Holman will serve the remainder of an eight-year term expiring December 31, 2018. He replaces Stephen Gulis, Jr., who resigned. Holman has served 8 years as a former NMU trustee and board chairman.