MANCHESTER, N.H. — CBRE has negotiated the $88.5 million sale of a 640-unit apartment portfolio in Manchester. The properties include Hilltop Ridge and The Highlands at Washington Park, which were both built in the early 1980s. Biria St. John and Simon Butler of CBRE represented the sellers, Hilltop Apartments LLC and WPN Property LLC, in the transaction. The buyer was an affiliate of The DSF Group. Brian Eisendrath, Cameron Chalfant and John Kelly of CBRE’s Capital Markets team secured financing for the buyer through an agency execution. DSF plans to operate the properties as one community in order to gain operational efficiencies. Both of the buildings have new roofs, exterior siding and windows.