GRAND RAPIDS, MICH. — NAI Wisinski has brokered the sale of Northland Plaza in Grand Rapids for an undisclosed price. The 20,168-square-foot shopping center is located at 3325 Plainfield Ave. NE. The property, currently home to a fitness center and tanning salon, will be renovated. Bill Tyson and Todd Leinberger of NAI Wisinski represented the buyer, 1923 Property LLC. Darrel Herweyer of DAR Development represented the undisclosed seller.