By Richard MizeReal estate editor rmize@oklahoman.comOklahoma County is a top opportunity zone investment area, and even as investors await detailed federal tax regulations before plunging in, Lincoln Square South, a mixed-use project long in the works in old east Deep Deuce, is poised to benefit. Broker-attorney Bert Belanger said local investors have been putting together property for years in the long-neglected area bounded on the west by Lincoln Boulevard, the east by High Avenue, the north by NE 4 and south by the Union Pacific Railroad line.Read more on NewsOK.com