RIVER EDGE, N.J. — NAI James E. Hanson has negotiated the sale of a 3,112-square-foot office condo in River Edge. The condo is located at 63 Grand Ave., a three-story, 10,000-square-foot office building. Darren Lizzack, Randy Horning, and Michael Guerra of NAI Hanson represented the buyer, Dr. Dan S. Landmann, in the transaction. Joe Tormen of Lee & Associates represented the seller, 63 Grand Ave LLC. The buyer was searching for an opportunity to purchase space as a long-term home for his surgery practice currently based in Maywood.